Re: [ap-gto] Older 1100GTO gearbox adjustment


Apr 13, 2013

 


----------------------------

#40352 Apr 13, 2013

Is the base of the 1100GTO similar in design to the 1600GTO in that it will fit into the standard AP 8" portable pier (vs. the 10" pier for the 1600)? Also, will there be a corresponding Flat Surface adapter like the 1612FSA for the 1600/1200 (i.e. a 1109FSA)? If so, will a drawing soon be available?

Thanks,

Kurt Mihalco



----------------------------

#40354 Apr 13, 2013

Maybe the answer is already here for the 1100 Flat Surface Adapter. I see there is already the 900FSA. Will it work with the 1100?

Thx,

Kurt

--- In ap-gto@yahoogroups.com, "mihalco" mihalco@...> wrote:

>

> Is the base of the 1100GTO similar in design to the 1600GTO in that it will fit into the standard AP 8" portable pier (vs. the 10" pier for the 1600)? Also, will there be a corresponding Flat Surface adapter like the 1612FSA for the 1600/1200 (i.e. a 1109FSA)? If so, will a drawing soon be available?

> Thanks,

> Kurt Mihalco

>



----------------------------

#40355 Apr 13, 2013

Yes





-----Original Message-----

From: mihalco mihalco@...>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Sat, Apr 13, 2013 3:32 pm

Subject: [ap-gto] Re: 1100GTO base question





Maybe the answer is already here for the 1100 Flat Surface Adapter. I see there

is already the 900FSA. Will it work with the 1100?

Thx,

Kurt

--- In ap-gto@yahoogroups.com, "mihalco" mihalco@...> wrote:

>

> Is the base of the 1100GTO similar in design to the 1600GTO in that it will

fit into the standard AP 8" portable pier (vs. the 10" pier for the 1600)?

Also, will there be a corresponding Flat Surface adapter like the 1612FSA for

the 1600/1200 (i.e. a 1109FSA)? If so, will a drawing soon be available?

> Thanks,

> Kurt Mihalco

>









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#41524 Aug 25, 2013

Any chance of getting some pictures taken from a viewpoint 180 degrees opposite those presented on the AP110GTO web pages. I for one would like to see exactly how the CP3 holder is attached to the base. Is it possible to move it to the side of the altitude plates as is the case with the 1600? Is it possible to easily remove it at all? It just seems to be in a hugely awkward position for stowing the RA section in a case for portable use.



----------------------------

#42470 Nov 30, 2013

I had my first use of the 1100GTO with absolute encoders.  I had the encoders running.  I tried a small object using a 11" Celestron EdgeHD at 2000mm to give the mount a challenge.  The camera was a QSI583 wsg with no binning.  The exposures were 6 sets of 5 minute RGB's and 9 L's at 5 minutes each.

Guiding was with the off axis guider that is built into the camera.  Again 2000mm FL.

The object was NGC 2392, the Eskimo Nebula.  

groups.yahoo.com/neo/groups/ap-gto/photos/albums/831699172/lightbox/731151688>

Alan



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#42472 Dec 2, 2013

Alan,

Nice work - stars look good and round!

How do you like the 1100 so far?

Sean



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#42474 Dec 2, 2013

I adore this mount.  I am leaving the RA and declination pieces together because they only weigh 40 or 42 pounds.  I can handle putting that on my 36" ATS pier.  I wish I had ordered a 30" pier though.

I also experimented with guiding while using my TAK 130 refractor.  I expected it to be tight.  The guiding was so tight that the graph in PHD Guider looked almost like a straight line on the zero mark.  

I am very pleased with its performance.

Alan

Sent from my iPad

On Dec 2, 2013, at 2:45 PM, Sean Curry sxcurry@...> wrote:



Alan,

Nice work - stars look good and round!

How do you like the 1100 so far?

Sean



----------------------------

#42652 Dec 20, 2013

I'm very fortunate to own one of these wonderful mounts. I've had it a week and only had it under the stars one evening, due to the weather, but that limited experience taught me what it means for an AP mount to get out of the way and let you enjoy your hobby without distraction.

I've only owned a G11 so have limited experience with mounts. The G11 clutches would release to swing or spin very loosely on both axes. In the 1100GTO manual it mentions the use of new clutch material that is more stiff, though I have no other AP experience. What I found was that even loosening the clutches a few/several rotations leaves the mount stiff as advertised. I don't consider this a problem, but it makes balancing a bit more difficult to be precise. Under load, 2 X 24lbs + 1 X 10lbs on the CW shaft and about 35lbs of Tak Mewlon 250CRS  & accessories on a dovetail at the other end, it moves a little better, but still needs a push if close to balanced. Again, not a problem for me, as long as I'm getting as close to balanced as I should.

I never get the mount/clutches loose enough to rotate freely, unless perhaps I do something as drastic as remove the OTA while the counterweights are still on the shaft. What I mean by that is I have to push one end or the other to get a "feel" for its state of balance. The difference is subtle, with the side that is a little light requiring a little extra push to go down than the other side. With that I can get the load what appears to be close to balanced.

My question: For visual, (I realize imaging we want to be slight heavy on the east side) do you think I'm getting close enough by feel as described above? My guess is I'm not stressing the mount if I'm off a pound or two on one side or the other. Without the clutches more loose I don't feel certain I can get the balance any/much better. Having said that, do any of you have any recommendations on what I can do to get it down to the last few ounces of balance, if needed?

Once again, this is a beautifully engineered and manufactured piece of equipment. None of the above should be taken as a complaint, frustration, or criticism. I'm a very satisfied customer/owner.

Thank you,

Mark V







----------------------------

#42653 Dec 20, 2013

I have an amp meter in series with a 1600GTO. When the current reads the same when slewing both directions per given axis, I assume it is balanced.  CS - Steve Gallion

From:"valenzm@yalenzm@...> To: ap-gto@yahoogroups.com Sent: Friday, December 20, 2013 9:29 PM Subject: [ap-gto] Fellow 1100GTO Owners - clutches and balancing

 I'm very fortunate to own one of these wonderful mounts. I've had it a week and only had it under the stars one evening, due to the weather, but that limited experience taught me what it means for an AP mount to get out of the way and let you enjoy your hobby without distraction.

I've only owned a G11 so have limited experience with mounts. The G11 clutches would release to swing or spin very loosely on both axes. In the 1100GTO manual it mentions the use of new clutch material that is more stiff, though I have no other AP experience. What I found was that even loosening the clutches a few/several rotations leaves the mount stiff as advertised. I don't consider this a problem, but it makes balancing a bit more difficult to be precise. Under load, 2 X 24lbs + 1 X 10lbs on the CW shaft and about 35lbs of Tak Mewlon 250CRS  & accessories on a dovetail at the other end, it moves a little better, but still needs a push if close tobalanced. Again, not a problem for me, as long as I'm getting as close to balanced as I should.

I never get the mount/clutches loose enough to rotate freely, unless perhaps I do something as drastic as remove the OTA while the counterweights are still on the shaft. What I mean by that is I have to push one end or the other to get a "feel" for its state of balance. The difference is subtle, with the side that is a little light requiring a little extra push to go down than the other side. With that I can get the load what appears to be close to balanced.

My question: For visual, (I realize imaging we want to be slight heavy on the east side) do you think I'm getting close enough by feel as described above? My guess is I'm not stressing the mount if I'm off a pound or two on one side or the other. Without the clutches more loose I don't feel certain I can get the balance any/much better. Having said that, do any of you have anyrecommendations on what I can do to get it down to the last few ounces of balance, if needed?

Once again, this is a beautifully engineered and manufactured piece of equipment. None of the above should be taken as a complaint, frustration, or criticism. I'm a very satisfied customer/owner.

Thank you,

Mark V



----------------------------

#42654 Dec 20, 2013

Mark,

You describe what I think most people experience with an 1100 or 1600 mount. That "stiffness" is typical: I don't think there is a way to fine-tune the balance to exquisite precision - it's even unnecessary. I slide my weights slowly down the counterweight shaft (on a 1600 mount) until the moment I see the RA axis rotates; I then back off the weights slightly until the RA axis no longer rotates and call it a day.

Armand

P.S. The amount of weight you place is not the issue, it's the moment/torque that you introduce. A 10 lbs weight high on the shaft can produce the same effect as a 1 lbs weight low on the shaft.

-------- Original message --------From: valenzm@... Date:12/20/2013 10:29 PM (GMT-05:00) To: ap-gto@yahoogroups.com Subject: [ap-gto] Fellow 1100GTO Owners - clutches and balancing

 I'm very fortunate to own one of these wonderful mounts. I've had it a week and only had it under the stars one evening, due to the weather, but that limited experience taught me what it means for an AP mount to get out of the way and let you enjoy your hobby without distraction.

I've only owned a G11 so have limited experience with mounts. The G11 clutches would release to swing or spin very loosely on both axes. In the 1100GTO manual it mentions the use of new clutch material that is more stiff, though I have no other AP experience. What I found was that even loosening the clutches a few/several rotations leaves the mount stiff as advertised. I don't consider this a problem, but it makes balancing a bit more difficult to be precise. Under load, 2 X 24lbs + 1 X 10lbs on the CW shaft and about 35lbs of Tak Mewlon 250CRS  & accessories on a dovetail at the other end, it moves a little better, but still needs a push if close to balanced. Again, not a problem for me, as long as I'm getting as close to balanced as I should.

I never get the mount/clutches loose enough to rotate freely, unless perhaps I do something as drastic as remove the OTA while the counterweights are still on the shaft. What I mean by that is I have to push one end or the other to get a "feel" for its state of balance. The difference is subtle, with the side that is a little light requiring a little extra push to go down than the other side. With that I can get the load what appears to be close to balanced.

My question: For visual, (I realize imaging we want to be slight heavy on the east side) do you think I'm getting close enough by feel as described above? My guess is I'm not stressing the mount if I'm off a pound or two on one side or the other. Without the clutches more loose I don't feel certain I can get the balance any/much better. Having said that, do any of you have any recommendations on what I can do to get it down to the last few ounces of balance, if needed?

Once again, this is a beautifully engineered and manufactured piece of equipment. None of the above should be taken as a complaint, frustration, or criticism. I'm a very satisfied customer/owner.

Thank you,

Mark V



----------------------------

#42655 Dec 20, 2013

I have the AP900 but the same is true with it. I use what Roland recommended a fish scale. I simply pull up and then down with it on the end of the counterweight shaft and if the scale reads the same, it is balanced. The scale was like $3.Floyd







----------------------------

#42656 Dec 20, 2013

This was from Roland a little while ago:







Yes, the stiffness in the clutch is normal and on purpose. It prevents the scope and counterweight from swinging wildly and crashing into the pier in situations where there is extreme unbalance and someone inadvertently loosens the clutch knobs and bonks themselves in the head and ends up in the hospital. These mounts are made to carry huge heavy scopes, of if your scope is short and lightweight, the mount doesn't even know that it has any load. There is no need to fuss about balance! Get it close and you will be fine, trust me. If you really must have perfect balance, you can use a simple fish scale:



( www.proguidedirect.com/berkley-btfst50-50lb-fish-scale-w-tape.html?gclid=CNidgs6J27kCFe1AMgodk2kAvg )



Use the scale on the end of the scope for Dec balance and the end of the counterweight shaft for RA balance. Pull the scale one way, then the other way and measure the weight difference. Make the weight the same and you are in balance! The above scale is just under $6, so no budget buster.



The stiffness that you feel is not in the RA axis at all. The axis moves very easily on ball bearings. If you don't believe me, simply disengage the worm gear from the worm wheel and watch how easy the axis moves (but watch out for scope or counterweight swinging free with no friction - it may hit the pier in your effort to enlighten yourself).



Hi All:







I posted this some time ago, and apparently it never appeared on the GTO group, so I am posting it again



Rolando











Dave Goodyear



KB2 Networks Inc.



214 Main St. #318



El Segundo, CA 90245



310-933-2436







cid:image001.png@01CB2D84.4D351AD0











From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] On Behalf Of valenzm@...

Sent: Friday, December 20, 2013 7:30 PM

To: ap-gto@yahoogroups.com

Subject: [ap-gto] Fellow 1100GTO Owners - clutches and balancing











I'm very fortunate to own one of these wonderful mounts. I've had it a week and only had it under the stars one evening, due to the weather, but that limited experience taught me what it means for an AP mount to get out of the way and let you enjoy your hobby without distraction.



I've only owned a G11 so have limited experience with mounts. The G11 clutches would release to swing or spin very loosely on both axes. In the 1100GTO manual it mentions the use of new clutch material that is more stiff, though I have no other AP experience. What I found was that even loosening the clutches a few/several rotations leaves the mount stiff as advertised. I don't consider this a problem, but it makes balancing a bit more difficult to be precise. Under load, 2 X 24lbs + 1 X 10lbs on the CW shaft and about 35lbs of Tak Mewlon 250CRS & accessories on a dovetail at the other end, it moves a little better, but still needs a push if close to balanced. Again, not a problem for me, as long as I'm getting as close to balanced as I should.



I never get the mount/clutches loose enough to rotate freely, unless perhaps I do something as drastic as remove the OTA while the counterweights are still on the shaft. What I mean by that is I have to push one end or the other to get a "feel" for its state of balance. The difference is subtle, with the side that is a little light requiring a little extra push to go down than the other side. With that I can get the load what appears to be close to balanced.



My question: For visual, (I realize imaging we want to be slight heavy on the east side) do you think I'm getting close enough by feel as described above? My guess is I'm not stressing the mount if I'm off a pound or two on one side or the other. Without the clutches more loose I don't feel certain I can get the balance any/much better. Having said that, do any of you have any recommendations on what I can do to get it down to the last few ounces of balance, if needed?



Once again, this is a beautifully engineered and manufactured piece of equipment. None of the above should be taken as a complaint, frustration, or criticism. I'm a very satisfied customer/owner.



Thank you,



Mark V











[Non-text portions of this message have been removed]



----------------------------

#42657 Dec 21, 2013

Thank you all for your answers. It's interesting to hear similar experiences with other AP mounts. Here are two lines from item 4 in the Clutch Knobs and Balancing section of the manual:



The 1100GTO uses a different clutch system, and it also uses a different bearing system for the free rotation of the axes. It will feel stiffer than the 900 and 1200 series mounts.



It then goes on to mention the clutch knob spring will keep tension applied even when the knobs are loose. From what you all experience with the other mounts, the stiffness I'm experiencing and the way I'm going about balancing is probably as good as any. Thanks again,





Mark V





--------------- On Fri, 12/20/13, valenzm@... valenzm@...> wrote:



Subject: [ap-gto] Fellow 1100GTO Owners - clutches and balancing

To: ap-gto@yahoogroups.com

Date: Friday, December 20, 2013, 10:29 PM

































.



















I'm very fortunate to own one of these

wonderful mounts. I've had it a week and only had it

under the stars one evening, due to the weather, but that

limited experience taught me what it means for an AP mount

to get out of the way and let you enjoy your hobby without

distraction.



I've only owned a G11 so have limited experience with

mounts. The G11 clutches would release to swing or spin very

loosely on both axes. In the 1100GTO manual it mentions the

use of new clutch material that is more stiff, though I have

no other AP experience. What I found was that even loosening

the clutches a few/several rotations leaves the mount stiff

as advertised. I don't consider this a problem, but it

makes balancing a bit more difficult to be precise. Under

load, 2 X 24lbs + 1 X 10lbs on the CW shaft and about 35lbs

of Tak Mewlon 250CRS. & accessories on a dovetail

at the other end, it moves a little better, but still needs

a push if close to balanced. Again, not a problem for me, as

long as I'm getting as close to balanced as I should.



I never get the mount/clutches loose enough to rotate

freely, unless perhaps I do something as drastic as remove

the OTA while the counterweights are still on the shaft.

What I mean by that is I have to push one end or the other

to get a "feel" for its state of balance. The

difference is subtle, with the side that is a little light

requiring a little extra push to go down than the other

side. With that I can get the load what appears to be close

to balanced.



My question: For visual, (I realize imaging we want to be

slight heavy on the east side) do you think I'm getting

close enough by feel as described above? My guess is I'm

not stressing the mount if I'm off a pound or two on one

side or the other. Without the clutches more loose I

don't feel certain I can get the balance any/much

better. Having said that, do any of you have any

recommendations on what I can do to get it down to the last

few ounces of balance, if needed?



Once again, this is a beautifully engineered and

manufactured piece of equipment. None of the above should be

taken as a complaint, frustration, or criticism. I'm a

very satisfied customer/owner.



Thank you,



Mark V







----------------------------

#42666 Dec 21, 2013

With any AP mount, balance is not critical. You can be quite a bit out of balance and the mount doesn't care.Don

Sent from my iPad

On Dec 21, 2013, at 4:34 AM, Mark Valenz valenzm@...> wrote:



 Thank you all for your answers. It's interesting to hear similar experiences with other AP mounts. Here are two lines from item 4 in the Clutch Knobs and Balancing section of the manual:



The 1100GTO uses a different clutch system, and it also uses a different bearing system for the free rotation of the axes. It will feel stiffer than the 900 and 1200 series mounts.



It then goes on to mention the clutch knob spring will keep tension applied even when the knobs are loose. From what you all experience with the other mounts, the stiffness I'm experiencing and the way I'm going about balancing is probably as good as any. Thanks again,



Mark V



---------------

On Fri, 12/20/13, valenzm@... valenzm@...> wrote:



Subject: [ap-gto] Fellow 1100GTO Owners - clutches and balancing

To: ap-gto@yahoogroups.com

Date: Friday, December 20, 2013, 10:29 PM

































 



















I'm very fortunate to own one of these

wonderful mounts. I've had it a week and only had it

under the stars one evening, due to the weather, but that

limited experience taught me what it means for an AP mount

to get out of the way and let you enjoy your hobby without

distraction.



I've only owned a G11 so have limited experience with

mounts. The G11 clutches would release to swing or spin very

loosely on both axes. In the 1100GTO manual it mentions the

use of new clutch material that is more stiff, though I have

no other AP experience. What I found was that even loosening

the clutches a few/several rotations leaves the mount stiff

as advertised. I don't consider this a problem, but it

makes balancing a bit more difficult to be precise. Under

load, 2 X 24lbs + 1 X 10lbs on the CW shaft and about 35lbs

of Tak Mewlon 250CRS  & accessories on a dovetail

at the other end, it moves a little better, but still needs

a push if close to balanced. Again, not a problem for me, as

long as I'm getting as close to balanced as I should.



I never get the mount/clutches loose enough to rotate

freely, unless perhaps I do something as drastic as remove

the OTA while the counterweights are still on the shaft.

What I mean by that is I have to push one end or the other

to get a "feel" for its state of balance. The

difference is subtle, with the side that is a little light

requiring a little extra push to go down than the other

side. With that I can get the load what appears to be close

to balanced.



My question: For visual, (I realize imaging we want to be

slight heavy on the east side) do you think I'm getting

close enough by feel as described above? My guess is I'm

not stressing the mount if I'm off a pound or two on one

side or the other. Without the clutches more loose I

don't feel certain I can get the balance any/much

better. Having said that, do any of you have any

recommendations on what I can do to get it down to the last

few ounces of balance, if needed?



Once again, this is a beautifully engineered and

manufactured piece of equipment. None of the above should be

taken as a complaint, frustration, or criticism. I'm a

very satisfied customer/owner.



Thank you,



Mark V



----------------------------

#42667 Dec 21, 2013

Ya, thats it. Any luggage scale will work too. 

I wouldn't get too "twisted" up about balance. I run an SBS setup and am about to quad up some scopes. Close is good enough. 

Dave Goodyear

Sent from my iPhone

On Dec 21, 2013, at 8:33 AM, "John  A. Sillasen" JASillasen@...> wrote:



 I couldn't get Roland's link to work. Is this it?

www.proguidedirect.com/berkley-btfst50-50lb-fish-scale-w-tape-1.html



If so, it looks remarkably like the luggage scale I use when I travel to Mauna Kea.

Probably worth getting a spare because its so much more expensive to get your luggage weight wrong than it is to have an unbalanced load on any Astro-Physics mount!



John Sillasen



----------------------------

#42812 Jan 2, 2014

Does anyone know what the black knob on the right side of the motor housings (looking at the connector side) is or what it does? I have looked through all the user manuals and can not find any mention of them.

Thanks for any information,Barbara



----------------------------

#42819 Jan 2, 2014

Thank you Konstantin for your reply. It was driving me crazy trying to guess what that was and what it did.

Barbara



----------------------------

#42867 Jan 9, 2014

If you are asking about the hand controller, see this link:



tech.groups.yahoo.com/group/ap-gto/message/38433



This might also apply to external planetarium software as well. It's useful reading anyway.



Peter

--- In ap-gto@yahoogroups.com, fehner@...> wrote:

>

>

> I have searched the User Manuals and have found no mention of this. Does the 1100GTO send and receive through the RS-232 link and driver J-now coordinates or does it correct to J-2000? Also does it correct for refraction or does it require external correction? Kind of important to know when setting up the mount and supporting software.

>

>

> Thank you,

> Barbara

>







----------------------------

#42868 Jan 10, 2014

The mount itself is run by a servo  (CP3) that converts your RA/Dec input to an angle of the two axes gears. The CP3 servo does not know from J-now to J-anything. It is a simple angle converter that drives the two axes per your external input. All J-xxx commands must originate in some kind of planetarium program (hint: the keypad is a type of planetarium program). Rolando

-----Original Message-----

From: fehner fehner@...>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Thu, Jan 9, 2014 4:36 pm

Subject: [ap-gto] J-now, J-2000, and refraction correction 1100GTO





I have searched the User Manuals and have found no mention of this. Does the 1100GTO send and receive through the RS-232 link and driver J-now coordinates or does it correct to J-2000? Also does it correct for refraction or does it require external correction? Kind of important to know when setting up the mount and supporting software.

Thank you,Barbara



----------------------------

#42875 Jan 11, 2014

About whst?  I have the 8" 42" tall portable pier.  It's a direct bolt on to the 1100GTO without need of any adapter. 

John Sillasen



----------------------------

#42876 Jan 11, 2014

As I posted earlier, yes it is a direct bolt on but I would look for some after market knows with a 3/4" shoulder so you don't have to use an Allen wrench just to attach it. I think 6 are needed. The one where you put the CP3 will not accept a knob because there is no room. 5/8" 18 thread I think but am not home to confirm that. The guys mentioned McMaster Carr but I have yet to get an exact match for what's needed. Soon though I will find the right model knob and post it.



----------------------------

#42877 Jan 11, 2014

Hi John,



I was also looking for similar knobs with long enough shoulder. McMaster-Carr have knobs with shoulders but the shoulder is only 1/2" long:



www.mcmaster.com/#91830a636/=q7izx5



So I ordered this instead:



www.mcmaster.com/#91744a581/=q7izml



Hopefully they are good enough.



Peter

--- In ap-gto@yahoogroups.com, JASillasen@...> wrote:

>

> As I posted earlier, yes it is a direct bolt on but I would look for some after market knows with a 3/4" shoulder so you don't have to use an Allen wrench just to attach it. I think 6 are needed. The one where you put the CP3 will not accept a knob because there is no room. 5/8" 18 thread I think but am not home to confirm that. The guys mentioned McMaster Carr but I have yet to get an exact match for what's needed. Soon though I will find the right model knob and post it.

>



----------------------------

#42923 Jan 15, 2014

Hello,



I just received stainless steel thumbscrews from McMaster-Carr today to quickly install AP1100 to pier without tools. It's only $3.11 a piece.



www.mcmaster.com/#91744a581/=q7izml



It was very easy too tighten them and even easier to loosen them. I prefer to tool-less setup.



See picture at:



tinyurl.com/AP1100GTO-Thumbscrews



Peter

--- In ap-gto@yahoogroups.com, "topboxman2000" pnagy@...> wrote:

>

>

>

> Hi John,

>

> I was also looking for similar knobs with long enough shoulder. McMaster-Carr have knobs with shoulders but the shoulder is only 1/2" long:

>

> www.mcmaster.com/#91830a636/=q7izx5

>

> So I ordered this instead:

>

> www.mcmaster.com/#91744a581/=q7izml

>

> Hopefully they are good enough.

>

> Peter

>

> --- In ap-gto@yahoogroups.com, JASillasen@> wrote:

> >

> > As I posted earlier, yes it is a direct bolt on but I would look for some after market knows with a 3/4" shoulder so you don't have to use an Allen wrench just to attach it. I think 6 are needed. The one where you put the CP3 will not accept a knob because there is no room. 5/8" 18 thread I think but am not home to confirm that. The guys mentioned McMaster Carr but I have yet to get an exact match for what's needed. Soon though I will find the right model knob and post it.

> >

>



----------------------------

#43110 Feb 4 8:04 PM

www.flickr.com/photos/97939735@N04/12273364196/

6 hours of 5 minute LRGBs with QSI583wsg and 2x2 binning.Scope was a Celestron 11 inch EdgeHD with a .7 reducer.The mount did a great job.The camera is a wsg model so I was using its pickoff prism for off axis guiding.

Alan



----------------------------

#43118 Feb 5 10:53 AM

WoW! Over 6 hours exposure. Seems overkill for this galaxy. Rolando

-----Original Message-----

From: adpryor1953 adpryor1953@...>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Wed, Feb 5, 2014 12:47 pm

Subject: [ap-gto] Photo of SN2014J taken with 1100GTO with optical encoders





www.flickr.com/photos/97939735@N04/12273364196/

6 hours of 5 minute LRGBs with QSI583wsg and 2x2 binning.Scope was a Celestron 11 inch EdgeHD with a .7 reducer.The mount did a great job.The camera is a wsg model so I was using its pickoff prism for off axis guiding.

Alan



----------------------------

#43119 Feb 5 12:54 PM

Well it possibly would have taken considerably less time if APCC was out to allow the user to use his encoders, as advertised, to track the sky... maybe not...  The world may never know..



----------------------------

#43124 Feb 5 3:05 PM

Then how does the encoders use the pointing model to make tracking corrections for refraction?

The R.A. encoder is used to set the exact sidereal rate to eliminateperiodic error of the worm gear. When used in conjunction with ourAstro-Physics CommandCenter (APCC) Pro version software (purchasedseparately), the sidereal rate can be trimmed in small incrementsand adjusted to any rate necessary to counter R.A. and Dec. drift dueto flexure, atmospheric refraction, polar misalignment, etc.

how do you use the encoders to get a 600 second unguided exposure as touted on the AP website?

The R.A. encoder is used to set the exact sidereal rate to eliminateperiodic error of the worm gear. When used in conjunction with ourAstro-Physics CommandCenter (APCC) Pro version software (purchasedseparately), the sidereal rate can be trimmed in small incrementsand adjusted to any rate necessary to counter R.A. and Dec. drift dueto flexure, atmospheric refraction, polar misalignment, etc.

if you don't need APCC to use the encoders, then why buy the encoders when you could use PEC since AP mounts are inherently low in PE as it is.

lot of extra money for reduced PE and software homing functions.







----------------------------

#43126 Feb 5 3:31 PM

how do you use the encoders to get a 600 second unguided exposure as touted on the AP website?



You don't need encoders to do that, although having encoders would make the images tighter. :-)



Every AP mount comes with PulseGuide, free software also available from www.pulseguide.com, that allows you to track any object unguided for a long exposure. Using PulseGuide and training the mount for a minute or two would allow you to take 10-minute unguided exposures with round stars.



And pulseguide works BETTER with Encoders because the encoders will not only correct periodic error but also tiny random imperfections or particulates on worm wheel teeth.



APCC simply adds convenience to the mount's existing tracking capabilities.



-Ray Gralak

Author of Astro-Physics Command Center (APCC)

Author of PEMPro: www.ccdware.com

Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

Author of PulseGuide: www.pulseguide.com

Author of Sigma: www.gralak.com/sigma



> -----Original Message-----

> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] On Behalf Of apencoders@...

> Sent: Wednesday, February 05, 2014 3:05 PM

> To: ap-gto@yahoogroups.com

> Subject: [ap-gto] RE: Photo of SN2014J taken with 1100GTO with optical encoders

>

>

>

> Then how does the encoders use the pointing model to make tracking corrections for refraction?

>

>

>

>

> The R.A. encoder is used to set the exact sidereal rate to eliminate periodic error of the worm gear. When used in

> conjunction with our Astro-Physics Command Center (APCC) Pro version www.astro-

> physics.com/products/accessories/software/apcc/apcc.htm> software (purchased separately), the sidereal rate

> can be trimmed in small increments and adjusted to any rate necessary to counter R.A. and Dec. drift due to

> flexure, atmospheric refraction, polar misalignment, etc.

>

>

>

>

> how do you use the encoders to get a 600 second unguided exposure as touted on the AP website?

>

>

>

>

> The R.A. encoder is used to set the exact sidereal rate to eliminate periodic error of the worm gear. When used in

> conjunction with our Astro-Physics Command Center (APCC) Pro version www.astro-

> physics.com/products/accessories/software/apcc/apcc.htm> software (purchased separately), the sidereal rate

> can be trimmed in small increments and adjusted to any rate necessary to counter R.A. and Dec. drift due to

> flexure, atmospheric refraction, polar misalignment, etc.

>

>

>

>

> if you don't need APCC to use the encoders, then why buy the encoders when you could use PEC since AP

> mounts are inherently low in PE as it is.

>

>

>

>

> lot of extra money for reduced PE and software homing functions.

>

>

>

>

>



----------------------------

#43127 Feb 5 3:31 PM

Because some of us want the best of the best and are willing to wait for those added features..







I bitched and moaned forever about the encoders. A recent call to the powers that be gave me two options.. return the mount or STFU and wait. Well not in those words.. So far, I.m thinking option B, and will now wait patiently and keep my mouth shut. J







Nice picture of M82!











Dave Goodyear



KB2 Networks Inc.



214 Main St. #318



El Segundo, CA 90245



310-933-2436







cid:image001.png@01CB2D84.4D351AD0











From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] On Behalf Of apencoders@...

Sent: Wednesday, February 05, 2014 3:05 PM

To: ap-gto@yahoogroups.com

Subject: [ap-gto] RE: Photo of SN2014J taken with 1100GTO with optical encoders











Then how does the encoders use the pointing model to make tracking corrections for refraction?







The R.A. encoder is used to set the exact sidereal rate to eliminate periodic error of the worm gear. When used in conjunction with our www.astro-physics.com/products/accessories/software/apcc/apcc.htm> Astro-Physics Command Center (APCC) Pro version software (purchased separately), the sidereal rate can be trimmed in small increments and adjusted to any rate necessary to counter R.A. and Dec. drift due to flexure, atmospheric refraction, polar misalignment, etc.







how do you use the encoders to get a 600 second unguided exposure as touted on the AP website?







The R.A. encoder is used to set the exact sidereal rate to eliminate periodic error of the worm gear. When used in conjunction with our www.astro-physics.com/products/accessories/software/apcc/apcc.htm> Astro-Physics Command Center (APCC) Pro version software (purchased separately), the sidereal rate can be trimmed in small increments and adjusted to any rate necessary to counter R.A. and Dec. drift due to flexure, atmospheric refraction, polar misalignment, etc.







if you don't need APCC to use the encoders, then why buy the encoders when you could use PEC since AP mounts are inherently low in PE as it is.







lot of extra money for reduced PE and software homing functions.















[Non-text portions of this message have been removed]







----------------------------

#43131 Feb 5 5:29 PM

For the record, the encoders were used and doing their job as advertised.  The tracking was incredibly tight, much tighter than what it would have been if the encoders had not been turned on.  I have tried it with the encoders off and with the encoders on with their control loop running.  It is much tighter with encoders on, maybe 5 to 10 times tighter.

The reason for putting some much time into it was because I could not get to a dark sky.  This was shot 15 miles from downtown Atlanta.  You can imagine the amount of light pollution.  I overkilled it to get a good signal to noise ratio because of having to contend with Atlanta lights.



Alan



On Wednesday, February 5, 2014 6:34 PM, "chris1011@..." chris1011@...> wrote:

Encoders are not needed to use the pointing models in any software (APCC, Maxpoint, T-Point etc.). Pointing/tracking corrections can be implimented with or without encoders. The encoders have their features, and are especially useful for remote setups. They allow you to always know exactly where the mount is pointing, even if you inadvertently sync on a wrong object to which you were not actually pointing. It makes recovery of position a snap, and it allows tracking/slewing limits to be established to prevent pier/scope crashes. Encoders on the two axes allow the servo to close the loop on the actual position of the axes, so even if the gears are not perfect in every way, you can control the axes to sub-arc second positions almost instantly. This is nice for remote imaging also because it removes all doubt as to where the scope is pointed and how it is tracking at all times. During guiding when dithering, the servos can then move the guide star to the new dithered position in one guide exposure with great accuracy. No delays, no hysteresis, just pure accurate motions. And of course there is the reduction of PE in the RA tracking to sub-arc second levels. Rolando 

-----Original Message-----

From: apencoders apencoders@...>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Wed, Feb 5, 2014 5:20 pm

Subject: [ap-gto] RE: Photo of SN2014J taken with 1100GTO with optical encoders





Then how does the encoders use the pointing model to make tracking corrections for refraction?



The R.A. encoder is used to set the exact sidereal rate to eliminateperiodic error of the worm gear. When used in conjunction with ourAstro-Physics CommandCenter (APCC) Pro version software (purchasedseparately), the sidereal rate can be trimmed in small incrementsand adjusted to any rate necessary to counter R.A. and Dec. drift dueto flexure, atmospheric refraction, polar misalignment, etc.

how do you use the encoders to get a 600 second unguided exposure as touted on the AP website?

The R.A. encoder is used to set the exact sidereal rate to eliminateperiodic error of the worm gear. When used in conjunction with ourAstro-Physics CommandCenter (APCC) Pro version software (purchasedseparately), the sidereal rate can be trimmed in small incrementsand adjusted to any rate necessary to counter R.A. and Dec. drift dueto flexure, atmospheric refraction, polar misalignment, etc.



if you don't need APCC to use the encoders, then why buy the encoders when you could use PEC since AP mounts are inherently low in PE as it is.

lot of extra money for reduced PE and software homing functions.



----------------------------

#43140 Feb 6 8:26 AM

I have alerted George about your problem. He will contact you via e-mail and will help you to get this working properly. The gearbox should be free to move up and down. If it is stuck too tight and does not move without being lifted, then there may be a spacer that is set too tight. George will get you going on this. Rolando

-----Original Message-----

From: topboxman2000 pnagy@...>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Thu, Feb 6, 2014 9:37 am

Subject: [ap-gto] Adjusting gear mesh on AP1100GTO

Hello,

Long story short, I suspected the Dec axis gear mesh in my AP1100GTO might have been a little too tight so I followed the instructions to re-adjust gear mesh.

I simply loosened the left Gearbox lock-down screw and then right screw. I re-tightened the left screw, then right screw. I checked the spur gears (I removed the side cover of gear box) to see if the spur gears turn freely but they were pretty tight and did not turn as freely as RA axis spur gears. I repeated the mesh adjustment but got same results. I tapped the gear box while screws were loosed but didn't help.

After about 30 minutes, while the screws were loosed, I barely lift the gear box below the screws, then re-tightened the screws and finally the spur gears turned freely. I repeated this until I was satisified that the backlash was gone AND the spur gears turned freely.

Am I doing this correctly? Is it okay to lift (just barely) the gear box while tightening the gearbox lock-down screws? If I don't lift the gear box, the supr gears will always be too tight.

Thanks,Peter



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----------------------------

#43141 Feb 6 8:29 AM

Peter,  You may need a slight adjustment.  Contact me directly off-line and I can walk you through a couple things.

 Regards,  George  George WhitneyAstro-Physics, Inc.Phone:  815-282-1513Email:  george@...

 From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]On Behalf Of topboxman2000

Sent: Thursday, February 06, 2014 9:37 AM

To: ap-gto@yahoogroups.com

Subject: [ap-gto] Adjusting gear mesh on AP1100GTO



----------------------------

#43670 Apr 15, 2014

I just purchased an AP 1100 and read the KeyPad manual several times.I also have the 6.1 version of ASCOM and the latest AP V2 driver 5.0.5.31installed.  Right now the mount is in the Park 1 position with Auto-Connectset to NO.  I want to use the planetarium program Stellarium with its pluginStellariumScope which does see the AP V2 driver.  I am unclear on how to start up the mount with the KeyPad and the planetarium program.  Doesone first have to power up the mount to  set Auto-Connect on the KeyPad to EXT?  Then powerdown the mount and bring it back up up and then start the planetarium program?Also I note that the ASCOM driver has Park 4 as an option and advises not to usePark 1 but the KeyPad doesn't have Park 4 as an option.  So confusing ... I have watchedall of Gralak's videos but my questions don't seem to be addressed there ...

Any help is gratefully received ....

 Cheers, Jan M. Hollis

 



----------------------------

#43672 Apr 15, 2014

Hello Jan, You are certainly biting off a lot on your first try. You realize that the mount can be fully controlled with just the keypad, and that because of the flexibility built in you can add external operations to your mount as you need them. I hardly know how to advise you, since you want to do everything at once, instead of learning to operate the mount one step at a time. What you do and how you operate the mount is quite dependent on whether you have a permanent setup, or you set the whole thing up fresh each night, or you want to take the mount and scope to various locations around the country and set up fresh there at a new location. If you do any of these 3 things, the setup procedure can be slightly different. So, to get started, first explain how you are operating - 1) are you permanent, 2) do you set up fresh each night, 3) do you want to travel far distances with your scope? Rolando

-----Original Message-----

From: sgrb2 sgrb2@...>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Tue, Apr 15, 2014 4:16 pm

Subject: [ap-gto] Help on 1100GTO Learning Curve...







I just purchased an AP 1100 and read the KeyPad manual several times.

I also have the 6.1 version of ASCOM and the latest AP V2 driver 5.0.5.31

installed.  Right now the mount is in the Park 1 position with Auto-Connect

set to NO.  I want to use the planetarium program Stellarium with its plugin

StellariumScope which does see the AP V2 driver.  I am unclear on how to

start up the mount with the KeyPad and the planetarium program.  Does

one first have to power up the mount to  set Auto-Connect on the KeyPad to EXT?  Then power

down the mount and bring it back up up and then start the planetarium program?

Also I note that the ASCOM driver has Park 4 as an option and advises not to use

Park 1 but the KeyPad doesn't have Park 4 as an option.  So confusing ... I have watched

all of Gralak's videos but my questions don't seem to be addressed there ...



Any help is gratefully received ....



 Cheers,

 Jan M. Hollis

 



----------------------------

#43676 Apr 15, 2014

Rolando,The setup is a permanent observatory -- the mount is aligned as good asa polar scope allows at this point.  I am familiar with Stellarium and StellariumScope,having used it on my previous mount an LXD650.  It's the AP KeyPad documentationthat gives me some trouble when it talks about using an external program to runthe mount.  Otherwise, just using the KeyPad is clear enuf in the manual...

Cheers,Jan M. Hollis



----------------------------

#43679 Apr 15, 2014

Well then, a permanent mount is the absolute easiest to deal with.  1) Simplest way: The keypad has a function called Autostart. Basically when you enable Autostart YES, all you need to do is turn on power and you are finished. This function automatically initializes the mount using the known time and location (which you have set previously) and the mount knows where it is pointed, and you need to do nothing.Once the mount is powered up, simply connect you favorite planetarium program via the RS232 serial port, connect the program to the mount, and happy hunting. That is basically it in a nutshell. The above sequence does not require for your computer to do anything more than a basic connection - no initialization routines, no star alignments etc. When you are finished with your night's observing, either park the mount via one of the three keypad park settings, or park the mount via the park positions in the AP Ascom driver, or simply point the scope to any convenient spot in the sky and turn off power. You are done! Next night just turn on power and voila! the mount is ready to go again without you having to do anything. This is the simplified way to run a mount, and one that most people use.  2) Lets get more complex: 2a) If this is too basic for you, you can certainly do it in a much more complex and cumbersome way if you wish. You can leave the keypad completely out of the picture, i.e. you can disconnect it and do this initialization procedure any number of ways using your computer. The most direct way is to do it with the AP ASCOM driver. Follow the instructions for initialization, and you should be able to do the same thing that the keypad does for you automatically. Once initalized and pointing at your object, you can connect your planetarium program to the mount (via ASCOM Driver). You can also now plug in the keypad (hot plug is okiedokie), and you can move the objects around via the keypad direction buttons as needed. You can even use the keypad library to send the mount to objects in the sky if you want, or go there with your planetarium program, either way. However, be advised that you want to park the mount with the device which you used to initialize it - in this case park it with your computer, NOT the keypad (unless both devices have had their internal clocks synchronized). 2b) You want to start via the computer, BUT you want to always have your keypad connected, well this is the next level of complexity (which is the level at which you are probably confused). Power the mount up with the keypad connected. I am assuming that you have the keypad set to Autostart NO, so you will have to enter your location and then press Resume From Park. This will get you to the Main Menu. Next go to Setup/Keypad Options. Under Options, set Autostart to Autostart EXT. Turn off power. You are now ready to intialize your mount using ONLY your computer. When you power up the mount, it will not start operating and the keypad will not go to any of the menus UNTIL you intitialize the mount via AP ASCOM Driver or other similar program. Once initialized by your computer, the keypad will automatically go to the Main Menu, and you can then use it same as above. Again, do not park the mount via the Keypad unless you have synchronized the keypad clock with your computer's clock time. 3) Not complex enough for you? We can make this even more complicated if you wish, and there are certain reasons why you may wish to do this, but I suggest that you start off simple until you get used to how the mount works. Then climb the complexity mountain. Rolando

-----Original Message-----

From: sgrb2 sgrb2@...>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Tue, Apr 15, 2014 6:30 pm

Subject: Re: [ap-gto] Help on 1100GTO Learning Curve...





Rolando,

The setup is a permanent observatory -- the mount is aligned as good as

a polar scope allows at this point.  I am familiar with Stellarium and StellariumScope,

having used it on my previous mount an LXD650.  It's the AP KeyPad documentation

that gives me some trouble when it talks about using an external program to run

the mount.  Otherwise, just using the KeyPad is clear enuf in the manual...



Cheers,

Jan M. Hollis







----------------------------

#43681 Apr 15, 2014

Rolando,Thanks!  Your explanation is very clear compared to themanual that led me to think Auto-Connect had to be set to EXT to allow the mount to be controlled by the planetarium program even with the KeyPad attached.  I'm often confused but never in doubt ....

Cheers,Jan M. Hollis



----------------------------

#43719 Apr 17, 2014

Any Stellarium User,

With Auto-Connect set to YES, I turn power on the mount and Rcal on some star. Then I bring up StellariumScope (2013.8.9.68) which brings up Stellarium (0.12.4) and the AP V2 (v5.05.31) FW:U driver.  All the mount info on the ASCOM panel and the KeyPad agree:  times, positions, pier side, etc.Everything looks good but control 1  on the computer keyboard does not command  the mount for some reason.  Any advice is appreciated ....

Cheers,Jan M. Hollis



----------------------------

#43721 Apr 17, 2014

I got it to work.   Start and stop Stellarium to create a clean ini file (reset any location options, etc). Then start StellariumScope and use the [UpdateStellarium Configuration] button.



----------------------------

#44317 Jun 28, 2014

What else do you have connected to the mount? What external software? Disconnect all external software, then go into the keypad and look at your backlash settings. RA and DEC backlash should be set at 0.0.  I have seen this very thing with Maxim DL V5 loaded on a new Windows 7 64 bit computer. Maxim was sending a continuous stream of pos. and neg. moves to Dec, causing the motor to tick back and forth. We disconnected Maxim and connected the same V5 from my Windows XP computer and everything was stable. I still don't know what caused the problem with Windows 7 setup. If you still have this problem with nothing attached to the mount, then call our customer service on Monday. Rolando  -----Original Message-----

From: swiencek@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Sat, Jun 28, 2014 3:50 pm

Subject: [ap-gto] Dec axis gear on 1100GTO ticks like a loud clock





I have a new 11000GTO with the encoders. The Dec axis gear on 1100GTO ticks like a loud clock. the motor gear is actually oscillating back and forth. This gear should not be moving when tracking. I've gone through all the check the gearbox procedures and everything is fine. If I disconnect the encoders, the ticking stops. What are the encoders doing to cause this? It's like the dripping water torture.



Steve



----------------------------

#44374 Jul 6, 2014

Rolando,  You were absolutely right about the backlash settings. Once set to zero, everything was fine. I have since received a beta chip from AP which also solved the problem regardless of backlash settings. Thanks for the help.  Steve  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Saturday, June 28, 2014 4:13 PMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] Dec axis gear on 1100GTO ticks like a loud clock



----------------------------

#44390 Jul 7, 2014

I am placing an order for an 1100 gto mount tomorrow just wondering how much weight should I get? The mount will hold a C14 scope an optec TCFS and an SBIG ST 2000 with filter wheel and a 6.3 focal reducer.I was thinking 2 24lbs and 1 18lbs.Any thoughts?ThanksJoe



----------------------------

#44391 Jul 7, 2014

For my C14 on the AP1100 mount I got 3 24lbs

weights. I think you will be happier with at least 3 24lbs weights. (IMHO)



At 04:57 PM 7/7/2014, you wrote: >

>

>I am placing an order for an 1100 gto mount

>tomorrow just wondering how much weight should I

>get? The mount will hold a C14 scope an optec

>TCFS and an SBIG ST 2000 with filter wheel and a

>6.3 focal reducer. I was thinking 2 24lbs and 1 18lbs. Any thoughts? Thanks Joe

>





[Non-text portions of this message have been removed]



----------------------------

#44393 Jul 8, 2014

I bought 4 x 18lb. and 1 x 10 lb. counterweights with 9 inch shaftextension from AP, assuming various optics and accessories options for myEdgeHD1400 on the mount.In the field I found myself always using 2 x 18lb. and 1 x 10lb. withthe shaft for both visual star observation and astrophotography with NikonD800.I might use the third 18lb. weight when I attached the heavy gear ontop of the OTA, and will keep the fourth 18lb. one as a spare.Yasushi Fukunaga 



----------------------------

#44418 Jul 11, 2014

Everything is a tradeoff. For multiple night "Boony-stay", use a solar panel to top off the batteries during the day. Then all you would need would be a 35AH or so of battery.

TomHATES lifting batteries.



----------------------------

#44827 Aug 18, 2014

Nice and sharp with excellent colors. Rolando  -----Original Message-----

From: 'Peter Nagy' pnagy@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Sat, Aug 16, 2014 7:51 pm

Subject: [ap-gto] First complete RGB light with A-P 1100GTO, TEC 140, QSI660wsg





Hello, After receiving a new A-P 1100GTO mount almost a year ago, things have not been so nice to me like awful weather. I use it several times mainly for testing and taking test shots but never serious enough until last night. Last night was fantastic and the seeing was surprisingly better than usual. So I imaged NGC 6946 (Fireworks Galaxy) and it worked flawlessly. A-P 1100GTO mount is truly easy to operate. Even after Meridian Flipping and not using pointing model, this galaxy was DEAD CENTER at west side of Meridian. I didn't have to plate solve it and auto center it. The scope was obviously well orthogonal with the mount. Autoguiding was used with A-P Vario Finder 250mm focal length and Superstar. peternagy.smugmug.com/Telescopes/Galaxies/15823423_dS2M3V#!i=3464308073&k=W4Vdjjn Details:



NGC6946: Fireworks Galaxy. RGB. No Luminance. 0.96"/pixel image scale.



Astrodon Red filter, 10 x 10 minutes, Unbinned 1x1. 8/15/2014.

Astrodon Green filter, 10 x 10 minutes, Unbinned 1x1. 8/15/2014.

Astrodon Blue filter, 10 x 10 minutes, Unbinned 1x1. 8/15/2014.



TEC 140 APO F/7 with Astro-Physics A-P1100GTO GEM. QSI660wsg. Guided with A-P Vario Finder 250mm focal length and Superstar.



Captured and automated with Sequence Generator Pro (SGP). Calibration with Nebulosity and post-processed with PixInsight. PHD settings: RA Aggressiveness: 60, RA Hysteresis: 10, Max RA/Dec Duration: 1000, Min Motion: 0.10, Calibration Steps: 550msec, Auto/Resist Switching, Extreme dithering and Settled at 0.4, 1 sec guiding exposure. I will finish this galaxy by taking Luminance subs and combine with RGB hopefully tonight. Thanks for making a great mount. Peter







----------------------------

#44993 Sep 4, 2014

This is my second RGB image of Cocoon Nebula using my new A-P1100GTO taken from high light pollution of Reno, NV. I find TEC 140 APO and QSI 660 (Sony ICX-694 CCD) a fantastic combo for small to medium size DSOs.

tinyurl.com/CocoonNebula

IC 5146: Cocoon Nebula. RGB plus Pseudo-Luminance extracted from RGB added. 0.96"/pixel image scale.



Astrodon Red filter, 12 x 10 minutes, Unbinned 1x1. 8/30/2014.

Astrodon Green filter, 12 x 10 minutes, Unbinned 1x1. 8/30/2014.

Astrodon Blue filter, 12 x 10 minutes, Unbinned 1x1. 8/30/2014.



TEC 140 APO F/7 with Astro-Physics A-P1100GTO GEM. QSI660wsg. Guided with A-P Vario Finder 250mm focal length and Superstar.



Captured and automated with SGP. Calibration with Nebulosity andPost-processed with PixInsight. PHD2 settings: RA Aggressiveness: 90, RAHysteresis: 10, Max RA/Dec Duration: 1000, Min Motion: 0.25,Calibration Steps: 700msec, Auto/Resist Switching, Extreme dithering andSettled at 1.0, 3 sec guiding exposure.

Peter



----------------------------

#44996 Sep 4, 2014

Very nice Peter! 

I'm also putting my new 1100GTO through its paces and have a similar rendition of the Cocoon nebula:  

IC5146 - Cocoon Nebula (rbotero) - Full resolution | AstroBin



IC5146 - Cocoon Nebula (rbotero) - Full resolution | AstroBin Community for astrophotographers



----------------------------

#44999 Sep 4, 2014

Thanks Roberto. My work place blocks astrobin.com so I can't see your image. I will have to wait till tonight.

Peter



On Thursday, September 4, 2014 8:30 AM, "rbotero@... [ap-gto]" ap-gto@yahoogroups.com> wrote:

 Very nice Peter! 

I'm also putting my new 1100GTO through its paces and have a similar rendition of the Cocoon nebula:  

IC5146 - Cocoon Nebula (rbotero) - Full resolution | AstroBin



IC5146 - Cocoon Nebula (rbotero) - Full resolution | AstroBin Community for astrophotographers



----------------------------

#45002 Sep 4, 2014

Hi Roberto,

I saw your Cocoon Nebula image and I think it looks great.

Peter



On Thursday, September 4, 2014 9:50 AM, "Peter Nagy pnagy@... [ap-gto]" ap-gto@yahoogroups.com> wrote:

 Thanks Roberto. My work place blocks astrobin.com so I can't see your image. I will have to wait till tonight.

Peter



On Thursday, September 4, 2014 8:30 AM, "rbotero@... [ap-gto]" ap-gto@yahoogroups.com> wrote:

 Very nice Peter! 

I'm also putting my new 1100GTO through its paces and have a similar rendition of the Cocoon nebula:  

IC5146 - Cocoon Nebula (rbotero) - Full resolution | AstroBin



IC5146 - Cocoon Nebula (rbotero) - Full resolution | AstroBin Community for astrophotographers



----------------------------

#45003 Sep 4, 2014

Cheers Peter. These mounts are amazing (as was my previous 900GTO). Not having to drop any frames because of tracking makes a huge difference from usually rainy and foggy London. 

Roberto



----------------------------

#45060 Sep 14, 2014

Hi All,

My problem, I have set up my 1100GTO in my Apartment to test it out.First I set it in Park 1 position by hand, Scope on west side facing North nice and parallel to the groundpower up the mount enter the Date/Time(24 Hour format), location and my UTC offset, Press goto then takes me the next menu. I power down, power up, Select 1 for location. I next press Resume Ref-Park 1, I then send it to park1 again to verify it knows it's in park 1. send it to park 2, Counter weight shaft is straight up and down, But Scope is about 5 degrees off, Send it to park 3, RA doesn't move but Dec axis goes toward North but stops about 5 Degrees to the west of Meridian. I live in Korea, So that would put me in the Eastern Hemisphere and My UTC offset is +09 Hrs. Has anyone have to deal with this issue? and how can this be corrected?

Thanks in advance and Clear Skies,

Fred 



----------------------------

#45061 Sep 14, 2014

I am not sure if this will help but does Korea have Daylight Savings Time? If so, then you may have to set your hand controller to DST if you have not set it.

Peter

---In ap-gto@yahoogroups.com, frobi6852@...> wrote :

Hi All,

My problem, I have set up my 1100GTO in my Apartment to test it out.First I set it in Park 1 position by hand, Scope on west side facing North nice and parallel to the groundpower up the mount enter the Date/Time(24 Hour format), location and my UTC offset, Press goto then takes me the next menu. I power down, power up, Select 1 for location. I next press Resume Ref-Park 1, I then send it to park1 again to verify it knows it's in park 1. send it to park 2, Counter weight shaft is straight up and down, But Scope is about 5 degrees off, Send it to park 3, RA doesn't move but Dec axis goes toward North but stops about 5 Degrees to the west of Meridian. I live in Korea, So that would put me in the Eastern Hemisphere and My UTC offset is +09 Hrs. Has anyone have to deal with this issue? and how can this be corrected?

Thanks in advance and Clear Skies,

Fred 



----------------------------

#45063 Sep 14, 2014

Hi Fred,

I am going to assume you have not yet done a polar alignment or used the mount under dark sky so I think what you are seeing may be caused by incorrect physical latitude setting of your new mount for your location. In order to do the test successfully, you may need to polar align the mount. You can do that indoors by following the "Polar Aligning in the Daytime" as described in GTO Keypad Version 4.12 manual on page 23. I wouldn't worry about step 5 for azimuth adjustment. Once you get the Daytime Polar Alignment done, then your test as you described in your original post may work. Make sure you enter your Latitude/Longitude correctly in hand controller.

Did you do the test with the scope mounted and the mount balanced?

I also have A-P1100GTO mount and it has performed flawlessly for me.

Peter

---In ap-gto@yahoogroups.com, frobi6852@...> wrote :

Hi All,

My problem, I have set up my 1100GTO in my Apartment to test it out.First I set it in Park 1 position by hand, Scope on west side facing North nice and parallel to the groundpower up the mount enter the Date/Time(24 Hour format), location and my UTC offset, Press goto then takes me the next menu. I power down, power up, Select 1 for location. I next press Resume Ref-Park 1, I then send it to park1 again to verify it knows it's in park 1. send it to park 2, Counter weight shaft is straight up and down, But Scope is about 5 degrees off, Send it to park 3, RA doesn't move but Dec axis goes toward North but stops about 5 Degrees to the west of Meridian. I live in Korea, So that would put me in the Eastern Hemisphere and My UTC offset is +09 Hrs. Has anyone have to deal with this issue? and how can this be corrected?

Thanks in advance and Clear Skies,

Fred 







----------------------------

#45066 Sep 15, 2014

Your scope is not off in RA because counterweight shaft is straight up and down, so you have entered the correct time. Therefore I assume that your scope is off in Declination by 5 degrees. This suggests that either you do not have your altitude axis set correctly for your latitude (or perhaps you have entered the wrong latitude for your location).  By the way, this is one of the ways that you can set your polar alignment in the daytime by using the two park positions. It is all explained in the manual under daytime polar alignment. It is the method that I use when setting up my mount at a star party in another location far from home. Rolando  -----Original Message-----

From: frobi6852@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Sun, Sep 14, 2014 12:47 pm

Subject: [ap-gto] 1100GTO DEC. Axis issues





Hi All,



My problem, I have set up my 1100GTO in my Apartment to test it out.First I set it in Park 1 position by hand, Scope on west side facing North nice and parallel to the groundpower up the mount enter the Date/Time(24 Hour format), location and my UTC offset, Press goto then takes me the next menu. I power down, power up, Select 1 for location. I next press Resume Ref-Park 1, I then send it to park1 again to verify it knows it's in park 1. send it to park 2, Counter weight shaft is straight up and down, But Scope is about 5 degrees off, Send it to park 3, RA doesn't move but Dec axis goes toward North but stops about 5 Degrees to the west of Meridian. I live in Korea, So that would put me in the Eastern Hemisphere and My UTC offset is +09 Hrs. Has anyone have to deal with this issue? and how can this be corrected?



Thanks in advance and Clear Skies,



Fred 



----------------------------

#45067 Sep 15, 2014

His counterweight is straight up and down, that should give you the clue needed to determine that the time, date and location were entered correctly. 1 hour = 15 degrees, not 5 degrees, and a 5 degree offset in declination is ALWAYS due to altitude axis being set wrong. Mechanical setting of the altitude axis, has zero to do with any electronics. Go to the manual and check out the instructions for setting a mount up in the daytime. You actually use this error to set the mount's altitude axis via the Park 1 - Park 2 routine. Rolando  -----Original Message-----

From: pnagy@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Sun, Sep 14, 2014 1:38 pm

Subject: [ap-gto] Re: 1100GTO DEC. Axis issues





I am not sure if this will help but does Korea have Daylight Savings Time? If so, then you may have to set your hand controller to DST if you have not set it.



Peter



---In ap-gto@yahoogroups.com, frobi6852@...> wrote :

Hi All,



My problem, I have set up my 1100GTO in my Apartment to test it out.First I set it in Park 1 position by hand, Scope on west side facing North nice and parallel to the groundpower up the mount enter the Date/Time(24 Hour format), location and my UTC offset, Press goto then takes me the next menu. I power down, power up, Select 1 for location. I next press Resume Ref-Park 1, I then send it to park1 again to verify it knows it's in park 1. send it to park 2, Counter weight shaft is straight up and down, But Scope is about 5 degrees off, Send it to park 3, RA doesn't move but Dec axis goes toward North but stops about 5 Degrees to the west of Meridian. I live in Korea, So that would put me in the Eastern Hemisphere and My UTC offset is +09 Hrs. Has anyone have to deal with this issue? and how can this be corrected?



Thanks in advance and Clear Skies,



Fred 



----------------------------

#45068 Sep 15, 2014

Problem Solved.

Thanks Rolando for pointing out the Altitude Axis being off, For some reason it was set at 27 degrees and not to 37 degrees. I was so sure of myself that this is the only setting that I did not double check, I guess I'll have to color the degree marks so it's easier to read.

Thanks and clear skies,

Fred  



----------------------------

#45534 Oct 23, 2014

 How can I tell if the mount is on the correct side of the meridian when I am starting an imaging session?  And how do I force the mount to the correct side of the meridian if it starts to go to the opposite side during a goto command so that I can avoid doing a meridian flip in the middle of an imaging session? Thanks,Khushrow



----------------------------

#45536 Oct 23, 2014

If it's like the earlier A-P mounts, you'll find what you need in the manuals under "meridian delay."  Setting aside the matter of meridian delay, if you've initialized the scope with one of the park positions, and your polar alignment is OK, any go-to will send the scope to the appropriate side of the mount.



----------------------------

#45538 Oct 23, 2014

Normally, if you have given the keypad the correct information about time, date, location, the mount will correctly figure out that the meridian runs N-S overhead thru the zenith. However, if you cheat and tell the mount that local time is 5pm when it is really 8pm, then the mount will indeed calculate the meridian to be 3 hours east.



Now the next thing you should do is to start on the first star comfortably away from the meridian, in the east or west. That way you won't be on the wrong side when you start off.



However, there really is a simple way to start off fresh and new with a newly set-up mount. And that is to physically (manually) place the scope in Park1 position and when the keypad asks how you want to start, press the "Resume from Park1". It's that simple.



It is EVEN SIMPLER if you have a permanent setup, because you really don't ever have to worry about being on the wrong side of the mount when you start up. The mount will know where you left off the last time, and simply resume all by itself on the proper side. It requires no input from you. Just turn on the power, and presto, the mount is alive and fully functional. When you are done, either park it in one of the three pre-determined positions, OR anywhere you like - it matters not. All you need to set this up is to place the keypad in the AUTOSTART YES mode. Simple, efficient and accurate. Could not be easier.



Rolando







-----Original Message-----From: kmachhi@... [ap-gto] ap-gto@yahoogroups.com>To: ap-gto ap-gto@yahoogroups.com>Sent: Thu, Oct 23, 2014 4:57 pmSubject: [ap-gto] Re: AP1100GTO Meridian Flip...



 How can I tell if the mount is on the correct side of the meridian when I am starting an imaging session?  And how do I force the mount to the correct side of the meridian if it starts to go to the opposite side during a goto command so that I can avoid doing a meridian flip in the middle of an imaging session? Thanks,Khushrow







----------------------------

#45561 Oct 24, 2014

hi,

has anyone used the TPO Ritchey.Chr.tien from Optcorp? I was looking at the 14" TPO and the more i think about it the more i have a bad feeling.

it would be mainly for galaxies, any experience with this scope or similar? what kind of exposure lengths can i get?



----------------------------

#45653 Oct 27, 2014

Hi micksterg,Ritchey.Chr.tiens are designed specifically for astrophotography and are no good for visual use due to their large obstruction from the secondary. The TPO Ritchey.Chr.tiens are just rebranded GSO's, aka Astro-Tech Ritchey.Chr.tiens and others,The quality of the optics are fine, The only issue for some people is in the Ritchey.Chr.tien design it's self(And the weight). Ritchey.Chr.tiens tend to lose their collimation when they are moved around alot, If it is in an observatory this will not be a problem. Collimating is no big deal and can be done in a couple of minutes and can be done during the day and a star test tweak at night. I use the TPO 10" Ritchey.Chr.tien with a Moonlite CSL focuser and a Moonlite camera rotator, It weighs around 40 lbs not counting my imaging camera, Filterwheel, spacers and an Orion short tube 80mm with a Starlight Xpress Loadstar guide camera. The 14" Ritchey-Chretien is over 50 lbs alone, so that is something to keep in mind before you buy. 



----------------------------

#45660 Oct 28, 2014

The upper end RC's like RCOS' are very stable and don't usually go out of collimationunless treated roughly....and, who would do that? And....while I usually have a cameracoupled to mine, it provides stunning visual experiences.Mounted on an AP1200GTO....I might add.



Kent Kirkley





 



-----Original Message-----

From: Ross Salinger rgsalinger@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Tue, Oct 28, 2014 1:33 pm

Subject: RE: [ap-gto] Re: TPO 14" with 1100GTO





I use my 8. at star parties and I think it delivers (in normally polluted skies) pretty much the same view as an 8. SCT. I suspect that the F8 speed versus F10 for most SCT.s makes up for some of the loss of contrast.It.s important to realize that, while the obstruction is larger, it.s obstructed area not width that.s important. Probably the best idea would be to go for the Meade F8 ACF scopes. I think that.s what I.d do if I replaced it.I totally agree with the collimation point . mine keeps going out on me for no apparent reason . it.s been professionally done (not by me) twice and it.s out again.Rgrds-Ross From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

Sent: Monday, October 27, 2014 7:53 PM

To: ap-gto@yahoogroups.com

Subject: [ap-gto] Re: TPO 14" with 1100GTO



----------------------------

#45662 Oct 28, 2014

Just not true for the cheap ones like mine. I spoke to someone with the TPO 10. truss model Friday night. He says (now he drives in his car 50 miles one way with it) that he collimates it every time he goes out.There.s another fellow in my club who also has the AT8 who seems to spend a lot of time doing his. I suspect that you may be right about the DSI models and RCOS . I think they.re just put together better.I don.t know that they make one small enough to do AP on my Mach 1 and I don.t want to own a bigger mount as long as I have to be portable. Just for the record, mine rides with a seat belt in the passenger seat.I actually left it in a box at my dark sky sight and it lost collimation while sitting . carbon fiber tube . which I attributed to hot/cold cycles. Anyway, always possible I.ve observed atypical situations.Rgrds-Ross  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Tuesday, October 28, 2014 11:41 AMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] Re: TPO 14" with 1100GTO



----------------------------

#45664 Oct 29, 2014

thanks for the replies.

i bit the bullet and got it, i do have an observatory with the skyshed pod. im thinking its going to be a tight fit, and the weight issue is interesting.

ive read where seeing is a big factor here. my north and east skies look good. my south side is pretty light polluted.

is there a recommended collimator tool, i saw the hutech. not sure if thats a good tool or not. this is going to be challenging i believe.



Mitch



----------------------------

#46168 Dec 7, 2014

First is to check polar alignment using drift aligning.....

There's still going to be periodic error in the mount......I don't use pem because I autoguide.....I can autoguide to seeing limits....so why bother with pem.   But I think the pem needs calibration.....



----------------------------

#46169 Dec 8, 2014

There's no periodic error with encoders on. However, there will always be other sources of drift in both axes. If you are perfectly polar aligned, then the main one is atmospheric refraction which causes the stars to slow down as you move away from the zenith. There are two main ways to eliminate drift during a time exposure. One is guiding, the other is modeling. Unless you use a modeling program, you will always have drift in an unguided exposure. Rolando  -----Original Message-----

From: rhoowl@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Sun, Dec 7, 2014 6:53 pm

Subject: [ap-gto] Re: Unguided on AP1100GTO-AE - star was not rounded





First is to check polar alignment using drift aligning.....

There's still going to be periodic error in the mount......I don't use pem because I autoguide.....I can autoguide to seeing limits....so why bother with pem.   But I think the pem needs calibration.....



----------------------------

#46479 Dec 30, 2014

I will be receiving a new 1100GTO from the next production run in early 2015. It will be installed in a ROR observatory and I am trying to plan for the pier height. Could somebody tell me the approximate height of the mount from the pier plate (using a 119FSA) to the dovetail saddle plate (DOVELM162). The altitude will be set to approximately 31 degrees (i.e., observatory is near 31 deg North).



Thanks in advance.

Andy Galasso







----------------------------

#46480 Dec 30, 2014

Hi Andy,

Congratulations on the, soon to be, new mount. While I was waiting for my mount I found this Dimension Calculator on AP's website.

"DimensionsTo determine the appropriate pier height for your system and to calculate many of the dimensions that vary with your latitude setting, please try this Excel spreadsheet Latitude Dimension Calculator. Note: If the spreadsheet does not contain the information for the 1100GTO, please check back soon."

It should haveeverything you need and the 1100 is on it now. If the link doesn't work just look above the pricing for the 1100 on the website.

Enjoy!

Keith



----------------------------

#46481 Dec 30, 2014

Keith,

That's fantastic, exactly what I need. Thanks for the pointer.

Andy



----------------------------

#46829 Jan 25, 2015

Hi Bob,

I am still using pretty much the same PHD2 settings today. Yes, it was through several years of experience and lots of experimenting. Different focal length guide scopes and guide cameras will usually have different PHD2 settings. My current settings uses A-P Baader finder-guide scope with Superstar autoguider. PHD2 settings are a little different when using OAG.

Peter

---In ap-gto@yahoogroups.com, rqkimball@...> wrote :

Peter,

I know you posted this months ago, but I just received my new Mach 1 and thought I'd visit the forum. I figured I'd be the only one using PHD2.  Glad to see I'm not alone.  Are the PHD2 settings you shared the result of a lot of experimentation?  I was thinking about experimenting with different values, but if you've already done the work, I "steal" yours.  

Bob kimball



----------------------------

#46830 Jan 25, 2015

The guide settings should mostly depend on the guider image scale (arc-sec/px) and the seeing conditions you have.  With high-quality mounts, the mount will have little to do with it.

Bruce W.



----------------------------

#46937 Feb 2 10:19 PM

Hii just recently bought a TPO RC 14" two months ago and i havent had good guiding yet. my focal length is 2845mm.

the weird issue is when the scope is pointing east guiding is pretty good. but when the scope is pointing west the guiding is terrible.

ive checked my balance about 5 times, meshed both r/a and dec 3 times. looked for cable snags , there are none. so yeah it's weird. 

ive got some photos of my guiding settingsi1176.photobucket.com/albums/x328/diurnal1/AP%20guiding/guide%20setting_zps78otpx40.jpg



advanced guider settingsi1176.photobucket.com/albums/x328/diurnal1/AP%20guiding/guide%20setting_zps78otpx40.jpg



and here is a log of guiding from maxim dl. its label when my scope is pointing west and then east.AP GTO



AP GTO Greetings! This group is for discussions of Astro-Physics German equatorial telescope mounts with Goto capability, including use of related software such ...



----------------------------

#46942 Feb 3 8:28 AM

You don.t mention two important facts. What camera are you using and how are you guiding? Are you using a separate guide scope and camera or a SBIG type dual chip camera?  -Steve  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Tuesday, February 03, 2015 1:20 AMTo: ap-gto@yahoogroups.comSubject: [ap-gto] AP 1100GTO guiding problem



----------------------------

#46943 Feb 3 8:40 AM

Can you explain what is happening when you are pointing west? Here are the numbers for the tracking log:                                           OffsetX, OffsetY, Corr X, Corr Y, Bright

02:57:48,  165.36,  178.46,    1.36,   -1.54,   -0.14,   -0.05,    5547

02:57:54,  165.09,  177.79,    1.09,   -2.21,   -0.14,    0.00,    6489

02:57:59,  165.39,  176.99,    1.39,   -3.01,   -0.14,    0.00,    6256

02:58:04,  165.60,  176.42,    1.60,   -3.58,   -0.14,    0.00,    5528

02:58:10,  165.66,  175.65,    1.66,   -4.35,   -0.14,    0.00,    5641

02:58:15,  165.77,  175.16,    1.77,   -4.84,   -0.14,    0.00,    4873

02:58:20,  165.60,  174.63,    1.60,   -5.37,   -0.14,    0.03,    5856

02:58:26,  165.79,  173.56,    1.79,   -6.44,   -0.14,    0.05,    5513

02:58:31,  165.83,  173.10,    1.83,   -6.90,   -0.14,    0.06,    5504

02:58:37,  166.12,  172.54,    2.12,   -7.46,   -0.14,    0.05,    5339

02:58:42,  166.23,  171.74,    2.23,   -8.26,   -0.14,    0.07,    5272

02:58:48,  166.38,  170.99,    2.38,   -9.01,   -0.14,    0.08,    4886

02:58:54,  166.76,  170.34,    2.76,   -9.66,   -0.14,    0.07,    5264

02:58:59,  166.83,  169.58,    2.83,  -10.42,   -0.14,    0.08,    5137

02:59:05,  166.97,  168.81,    2.97,  -11.19,   -0.14,    0.10,    5017

02:59:10,  168.13,  168.57,    4.13,  -11.43,   -0.14,    0.00,    4528

02:59:15,  168.69,  167.81,    4.69,  -12.19,   -0.14,    0.00,    4963

02:59:21,  169.19,  167.27,    5.19,  -12.73,   -0.14,   -0.02,    5826 So can you explain the following:Offset X = ?Offset Y = ?Corr X = ?Corr Y = ? Once you can explain what these are, then we can proceed to understand what is happening. Rolando   -----Original Message-----

From: pctradition@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Tue, Feb 3, 2015 12:20 am

Subject: [ap-gto] AP 1100GTO guiding problem





Hii just recently bought a TPO RC 14" two months ago and i havent had good guiding yet. my focal length is 2845mm.



the weird issue is when the scope is pointing east guiding is pretty good. but when the scope is pointing west the guiding is terrible.



ive checked my balance about 5 times, meshed both r/a and dec 3 times. looked for cable snags , there are none. so yeah it's weird. 



ive got some photos of my guiding settingsi1176.photobucket.com/albums/x328/diurnal1/AP%20guiding/guide%20setting_zps78otpx40.jpg



advanced guider settingsi1176.photobucket.com/albums/x328/diurnal1/AP%20guiding/guide%20setting_zps78otpx40.jpg



and here is a log of guiding from maxim dl. its label when my scope is pointing west and then east.AP GTO



APGTO Greetings! This group is for discussions of Astro-Physics German equatorial telescope mounts with Goto capability, including use of related software such ...







----------------------------

#46944 Feb 3 8:42 AM

I don't think that is the issue. The issue seems to be that there is no mention of the telescope axes. Just X and Y. I have a feeling that I know exactly what is the problem, and it is not the mount, rather it is user error, as in not understanding what the guiding software is supposed to do when you flip sides.  Rolando  -----Original Message-----

From: 'Steve Reilly' sreilly24590@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Tue, Feb 3, 2015 10:28 am

Subject: RE: [ap-gto] AP 1100GTO guiding problem





You don.t mention two important facts. What camera are you using and how are you guiding? Are you using a separate guide scope and camera or a SBIG type dual chip camera? -Steve From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

Sent: Tuesday, February 03, 2015 1:20 AM

To: ap-gto@yahoogroups.com

Subject: [ap-gto] AP 1100GTO guiding problem



----------------------------

#46945 Feb 3 8:45 AM

Is the Reverse X box checked in the advanced guider settings? After a flip (at least with my Mach 1) I have to reverse the correction direction of the X axis or I get exactly what you are getting.Rgrds-Ross  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Tuesday, February 03, 2015 8:43 AMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] AP 1100GTO guiding problem



----------------------------

#46948 Feb 3 9:17 AM

I didn.t think of that. That makes total sense.  -Steve    From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Tuesday, February 03, 2015 11:43 AMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] AP 1100GTO guiding problem



----------------------------

#46951 Feb 3 11:43 AM

hi, i have a sbig stt 8300m with self-guiding chip. what happens is when i point the telescope west declination is Y and R/A is X.

the behavior is the star in declination will float out of the field of view. what do you think it is? i've got the telescope connected so it automatically detects the declination. is there a manual on how to guide in maxim dl, i've never found anything online to show exactly how to set up advance settings in maxim.

Mitch



----------------------------

#46952 Feb 3 11:48 AM

offset y= declination.axisoffset x = R/A axis

I dont know what the corr X, and Y is, how do I find that?

Thanks,

Mitch



----------------------------

#46953 Feb 3 12:03 PM

If you have any version of maxim 6 just download the manual.

Sent from my Verizon Wireless 4G LTE smartphone



----------------------------

#46954 Feb 3 1:20 PM

When you flip the scope to the other side, you have to tell the software that you have flipped. You do this by using the little "Pier Flip" checkbox. Either that or you have to recalibrate after a flip. You can also set up the software to do a pier flip automatically. Rolando -----Original Message-----

From: pctradition@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Tue, Feb 3, 2015 1:43 pm

Subject: [ap-gto] Re: AP 1100GTO guiding problem





hi, i have a sbig stt 8300m with self-guiding chip. what happens is when i point the telescope west declination is Y and R/A is X.

the behavior is the star in declination will float out of the field of view. what do you think it is? i've got the telescope connected so it automatically detects the declination. is there a manual on how to guide in maxim dl, i've never found anything online to show exactly how to set up advance settings in maxim.

Mitch



----------------------------

#47396 Mar 23, 2015

Having installed the new mount (1100GTO) and communication from the mount cable RS232 connector to USB converter and then the to my laptop, the COM is working fine and communicating through the ASCOM V2 (v5.06.03), however when I tried to connect the 'Pulseguide' using the same COM thinking that it would connect to the ASCOM V2, an error message pop out saying the mount not found.

Any idea how to over come this issue.

Thanks 

Charles 



----------------------------

#47397 Mar 23, 2015

Hi Carlos,



PulseGuide predates the ASCOM driver and doesn't use it, so you must disconnect the driver first from the mount.



-Ray Gralak

Author of APCC (Astro-Physics Command Center): www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc

Author of PEMPro: www.ccdware.com

Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

Author of PulseGuide: www.pulseguide.com

Author of Sigma: www.gralak.com/sigma



> -----Original Message-----

> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> Sent: Monday, March 23, 2015 5:58 AM

> To: ap-gto@yahoogroups.com

> Subject: [ap-gto] 1100GTO-Com issue

>

>

>

> Having installed the new mount (1100GTO) and communication from the mount cable RS232 connector to USB

> converter and then the to my laptop, the COM is working fine and communicating through the ASCOM V2

> (v5.06.03), however when I tried to connect the 'Pulseguide' using the same COM thinking that it would connect to

> the ASCOM V2, an error message pop out saying the mount not found.

>

>

>

>

> Any idea how to over come this issue.

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> Charles

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#47443 Mar 27, 2015

As mentioned before I have connected the AP100GTO mount to laptop etc and all communication look good, I started with the intergrated polar alignment in the Ascom V2, and it getting the Correct HA, I have the RA Polar Alignment Scope with Polaris at the center of the circle, Question, do I physically move Polaris  to the position showing in the HA screen??



Thanks

Carlos







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#47444 Mar 27, 2015

Carlos,  Yes, position the real Polaris on the reticle by turning the alt and az knobs so that it looks just like it does in the Apps.  Regards,  George  George WhitneyAstro-Physics, Inc.Phone:  815-282-1513Email:  george@...

 From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

Sent: Friday, March 27, 2015 2:28 PM

To: ap-gto@yahoogroups.com

Subject: [ap-gto] AP1100GTO-Polar Alignment



----------------------------

#47466 Mar 29, 2015

I purchased the 1100GTO having previously a CGEM Celestron and EQ6 mounts whereby I polar aligned, followed by two or three stars alignments, this allowed me to have a pretty good guiding. I am now in the progress of understanding AP hand control, and I thought that the system method to star alignment existed with the AP, but cannot find one, so, my question is does the HC have a similar star alignment method, or uses a polar alignment (which i do understand how it works with AP) followed by just picking a star to guided, or do i need to do a plate solving with say MaximDL/Maxpoint and then find a star to guide???

Carlos



----------------------------

#47471 Mar 29, 2015

Carlos:

I moved to a 900GTO mount from a Meade LX200, which uses a multi star alignment routine to produce very accurate goto's and tracking.  When reading the AP manual, I thought the "two star alignment" routine was the same as Meade's -- its not.  AP's two star alignment routine is used to help you tweak your polar alignment. 

The CP3 control software does not support any type of "training" that will allow the mount to correct for polar misalignment, non orthogonality, etc.  Using the hand box, the accuracy of your goto's and tracking are solely dependent on how well you are polar aligned and how orthogonal your OTA is.

If working visually, you can slew to a bright star near your target, manually center with the hand box, resync and then goto your final target.   Or, control your mount with software like TheSky using TPoint.  By building a basic pointing model (with as little as a dozen points) you can get pretty good goto accuracy with TheSky (but not with the hand box).

If you are imaging, you will need to get as good a polar alignment as practical.  Then, if using a product like Sequence Generator Pro (with PinPoint or Astrometry.net), the software can automatically slew your scope to an area near your final target; take an image, plate solve, sync the mount and then perform a second slew to be dead on the target.



----------------------------

#47484 Mar 30, 2015

Hi, I am setting up the softwares to work with AP V2 driver (5.06.04), I am using Maxim DL, usimng as telescope 'Maxpoint' and using Maxpoint as plate solving which is connect to AP V2 mount. I tried to do a Plate Solving after polar alignment using A{ Polar Scope Tool, and getting an error meassage.

; Error numbre:-2147220463Sourse: ASCOM V2 AS GTO Driver, Wrong tracking state.

I have tried putting in AP as unpark through the computer NOT the hand control, and tried tracking but does not work.



Any idea to solve this issue....



Thanks



----------------------------

#47492 Mar 30, 2015

I have tried putting in AP as unpark through the computer NOT the hand control, and tried tracking but does not

> work.



Hmmm... thousands of other mounts work correctly with the driver so you probably were doing something wrong. In particular, ASCOM requires tracking to be enabled before slewing and other actions can be done. So, unless you have certain options selected, you need to enable tracking on the mount after unparking.



-Ray Gralak

Author of APCC (Astro-Physics Command Center): www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc

Author of PEMPro: www.ccdware.com

Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

Author of PulseGuide: www.pulseguide.com

Author of Sigma: www.gralak.com/sigma



> -----Original Message-----

> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> Sent: Monday, March 30, 2015 12:43 PM

> To: ap-gto@yahoogroups.com

> Subject: [ap-gto] AP 1100GTO-Maxpoint &ASCOM V2

>

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> Hi, I am setting up the softwares to work with AP V2 driver (5.06.04), I am using Maxim DL, usimng as telescope

> 'Maxpoint' and using Maxpoint as plate solving which is connect to AP V2 mount. I tried to do a Plate Solving after

> polar alignment using A{ Polar Scope Tool, and getting an error meassage.

>

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> ; Error numbre:-2147220463

>

> Sourse: ASCOM V2 AS GTO Driver, Wrong tracking state.

>

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> I have tried putting in AP as unpark through the computer NOT the hand control, and tried tracking but does not

> work.

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> Any idea to solve this issue....

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> Thanks

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----------------------------

#48055 Jun 15, 2015

Hi Guys,

I'm new to AP mounts in general, just got an 1100 - what a beauty.I'm a little unsure about the internal cabling, pls excuse my inexperience at the moment.Where does the largest plug com out of, also where does the RA plug come out of? Anybody got a photo?Thanks heaps.

SteveNZ



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#48128 Jun 19, 2015

See my latest post and photos



----------------------------

#48169 Jun 28, 2015

I am setting up a new 1100GTO mount with absolute encoder. My question is do I have to use  12V power with the  encoder control box as well as with the GTO CP3 control box? Astrophysics only supplied one power cord.I am also having trouble getting the APAE program to recognize the encoder. I have one serial cable from the encoder to the computer and one cable from the keypad connection to the computer. The Setup Telescope program runs fine and can see the control box.

Thanks for any assistance.

Larry



----------------------------

#48171 Jun 29, 2015

Larry,  Both the CP3 and the AE Control Boxes can be powered from the same power source.  A power cable comes with the mount and, if you order the encoder version, then a power cablecomes with the AE Control Box.  The AE box must be powered, or it will not be recognized.  Be sure that you have confirmed which COM port is for the CP3 and which is for the AE box.

 Regards,  George  George WhitneyAstro-Physics, Inc.Phone:  815-282-1513Email:  george@...

 From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

Sent: Sunday, June 28, 2015 4:20 PM

To: ap-gto@yahoogroups.com

Subject: [ap-gto] setup of 1100GTO mount with encoder



----------------------------

#48686 Aug 18, 2015

I been using AP1100GTO mount guiding successfully with a one star alignment given that having a permanent pier and good polar alignment (using RAPAS). Given that I am starting using CCDAP for automating system on AP mount, MDL and TheSkyX, I just wanted to know if anyone using a similar arrangement had issues in finding a target when starting a session with CCDAP.

My setup is : MDL (I dont connect to telescope), In TheSkyX  as mount setup I have ASCOM AP GTO Model. 

my question is given that I dont do a HC one star alignment and allow CCDAP to take control of the tracking through MDL & TSX, but unfortunately is not hitting the target, do I need to change any parameters in AP mount control to allow CCDAP in hitting the object target.

Thanks

Charles 



----------------------------

#48688 Aug 18, 2015

Once you have the mount pointing successfully to a target object (star) and you do a Recal on it, you can go anywhere in the sky and get close to any other target, depending on your camera's field of view. When you shut down, simply park the mount in your script anywhere you choose. When starting up again, just do the initialization routine (Ascom Driver or APCC) and Resume From Park and you are good to go. Rolando  -----Original Message-----

From: carlos49gib@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Tue, Aug 18, 2015 5:46 pm

Subject: [ap-gto] AP1100Gto connecting with CCDAP





I been using AP1100GTO mount guiding successfully with a one star alignment given that having a permanent pier and good polar alignment (using RAPAS). Given that I am starting using CCDAP for automating system on AP mount, MDL and TheSkyX, I just wanted to know if anyone using a similar arrangement had issues in finding a target when starting a session with CCDAP.

My setup is : MDL (I dont connect to telescope), In TheSkyX  as mount setup I have ASCOM AP GTO Model. 

my question is given that I dont do a HC one star alignment and allow CCDAP to take control of the tracking through MDL & TSX, but unfortunately is not hitting the target, do I need to change any parameters in AP mount control to allow CCDAP in hitting the object target.

Thanks

Charles 



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#48801 Aug 28, 2015

I been trying to obtain a good pointing accuracy with my AP1100GTO given that when using it with CCDAP (which uses the AP mount position/location) the Plate Solve is out to the target, basically its pointing away from the target image. 

Ironically when using MDL / TheSkyX, the RA & DEC is spot on with the target (I took an exposure image and the target was there), and MDL Pinpoint Plate Solving  confirmed finding large volume of stars.

Thinking about this situation, Normally the way I go around doing a normal imaging is by first acquiring a 'one star' synchronization with AP hand control, given that I have a good polar alignment (using the mount software to find the Polar position) and applying this Angle Hour using the RAPAS.

So,my question is, First, Do I need to do this procedure (one star synchronization) every time a start an imaging session, or I can start directly from Park position to point to a target (using ThSkyX for target location) without the synchronization.

And, second has anyone using AP Mount with CCDAP had to do (setup) in the Mount software or Hand Control so that pointing accuracy is reasonable acceptable.

Thanks



----------------------------

#48804 Aug 28, 2015

Hello,



I personnally start straight away from Park 3 position (which isalways approximate) slewing to my target with TheSkyX when startingan imaging session.. I then take a short image and plate solve itusing TheSkyX and use the plate solved image to SYNC from TSX (whichactually is converted to a ReCal by AP driver).



I have not yet use CCDAP in the mix, so cannot help on this topic.



Clear skies



Antoine

Le 28/08/2015 12:33,carlos49gib@... [ap-gto] a .crit.:

.I been trying to obtain a good pointing accuracywith my AP1100GTO given that when using it with CCDAP(which uses the AP mount position/location) the PlateSolve is out to the target, basically its pointing awayfrom the target image..



Ironically when using MDL / TheSkyX, the RA & DEC isspot on with the target (I took an exposure image and thetarget was there), and MDL Pinpoint Plate Solving.confirmed finding large volume of stars.

Thinking about this situation, Normally the way I goaround doing a normal imaging is by first acquiring a 'onestar' synchronization with AP hand control, given that Ihave a good polar alignment (using the mount software tofind the Polar position) and applying this Angle Hourusing the RAPAS.

So,my question is, First, Do I need to do this procedure(one star synchronization) every time a start an imagingsession, or I can start directly from Park position topoint to a target (using ThSkyX for target location)without the synchronization.

And, second has anyone using AP Mount with CCDAP had todo (setup) in the Mount software or Hand Control so thatpointing accuracy is reasonable acceptable.

Thanks







----------------------------

#48807 Aug 28, 2015

To be clear, you can use the hand controller to go to any star or object, and the TSX cursor will automatically go to that same object. You do not need to do a Sync or Recal in TSX in order for that program to know exactly where you are pointing. It already knows, the cursor shows you where you are. Nothing further is needed for you to do.  Rolando  -----Original Message-----

From: lmbuck2000@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Fri, Aug 28, 2015 4:10 pm

Subject: [ap-gto] Re: AP1100Gto - CCDAP





i use CCDAP and a portable setup.  you can use the hand controller or TSX but unless you are very clear about what you are doing, you can be "off" if you mix the two methods.  i have done it both ways (and the wrong way) -- 1) hand controller to goto and sync on a star, or 2) TSX to goto and sync on a star.  IF you use the hand controller to goto and sync on a star, that really doesn't tell anything to TSX about where you are.  SO... if you do use the hand controller first, you still need to SYNC on the correct object in TSX.  if you did not use a find, goto, sequence from TSX (instead used the hand controller), you WILL need to do a FIND in TSX and click on the object with the mouse to make it active in TSX.  then just do a SYNC in TSX -- make sure the object you are syncing on is the same as you synced on using the hand controller.



once you have synced, it would be a good idea to use the "plate solve current location&q uot; button  in CCDAP.  that will resync the mount at the precise location.



at the end of a session, CCDAP parks the mount (3).    if i stay setup for a few days, i just use the ASCOM controller to unpark from last park after power-up and begin the session.  CCDAP plate solves on the first goto and any slight errors are corrected automatically.



one more thing... make sure your hand controller location and time are correct as well as computer/TSX location and time.  if they are different, you won't get consistent behavior.



Lee



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#48811 Aug 28, 2015

Hi Gang,  One major problem that many users have is that they fail to distinguish between the mount.s actual position and the mount.s intended position.    As Roland pointsout, you can send the mount to a target (your intended position) with any piece of software . be it the keypad, TSX, MaximDL, ACP or CCDAP or any other.    All of these software packages can know where the mount is currently pointing.   (With the keypad, youmust tell it to ask the mount where it is pointing.)   With all ASCOM client computer programs and also most other computer programs, the software is constantly asking the mount for its pointing position.   This is how the screen cursor in programs like TSXis able to follow the mount through a slew.   ALL of these programs can know the current position, but ONLY the software that issued the GoTo knows the intended target  When you use a Sync or ReCal with ANY program, you are synchronizing the mount.s pointing with intended pointing.   The problem arises in that NONE of these programscan know the intent of any other program.    If I send the mount to M57 with TSX, all the software can determine that the mount is pointing at coordinates near RA = 18:54 and Dec 33.03. .   However, only TSX knows that I intended to point at M57.   TSX should correctly recalibrate on M57 if asked to do so, but other software, including the keypad, cannot ReCal on M57 because they do not know that M57 is the intended target.  

 It is extremely powerful to be able to use many different pieces of software simultaneously with your Astro-Physics mount, but you must keep in mind that noneof this software can read your mind . at least not yet!  ;^)  Some tips and information:  Don.t overuse Sync / ReCal.    Because of the way that some other control software works, many people get in the habit of doing a sync after each GoTo.   Thatis an unnecessary habit with the AP mount.  Make sure that all your software is using the same coordinate system.   All unprecessed catalog (i.e. database) coordinates will usually be in J2000.   The keypadprecesses its internal J2000 catalog coordinates to JNow (aka topocentric), so it is preferable for consistency to try to use JNow for everything.    Most importantly, for good pointing, you can NOT mix coordinate epochs.   Going back to Carlos. original postin this topic, I would guess that if TSX and Maxim are getting spot-on GoTos while CCDAP is having pointing issues, it is because you are mixing coordinate epochs.  You must understand, NONE of the software tells the mount how to get where it needs to go.   Software simply provides the target coordinates for the GTO servoand the GTO figures out how to get there.   As I mentioned in the first paragraph, software.s cursor may follow a slew as it progresses, but it is not leading the slew.  Mag. 7 Skies!  Howard HedlundAstro-Physics, Inc.Phone: 815-282-1513www.astro-physics.comPlease include this e-mail with your response.  PConsider the environment before printing this e-mail.  

 From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

Sent: Friday, August 28, 2015 9:42 PM

To: ap-gto@yahoogroups.com

Subject: Re: [ap-gto] Re: AP1100Gto - CCDAP



----------------------------

#48813 Aug 29, 2015

Thanks for the reply, appreciate your thought....

Charles 



----------------------------

#48814 Aug 29, 2015

Thanks Lee, great explanation of the process, will give it a try tonight...

KR

Charles



----------------------------

#48815 Aug 29, 2015

I would like to say, thanks to all for passing your knowledge and experience in this subject, will take all the comments on-board.

KR

Charles 



----------------------------

#49095 Oct 1, 2015

Hi all,

after a period of inactivity for various reasons, I am back, hoping to image again very soon.

I recently read the 1600GTO review in the group postings, and  thought it was time to update my equipment webpage, with my new mount, the 1100GTO.I tried to show the main new features and emphasize the performance of this fantastic mount that does not need tons of electronics and software to operate properly out of the box.For those who are still thinking about acquiring the RAPAS polarscope, I have also included measurements showing the results.I will soon add screenshots of the tracking performance as I did for my 900GTO webpage.

Any comments are welcome.Here is the link:

www.ovision.com/Gilles_Materiel_AP1100GTOenglish.html



Best regards,

Gilles COHEN

www.ovision.com/Gilles_Home.html







----------------------------

#49424 Nov 1, 2015

Hello,sorry I have to rage a little bit at this one.Official website 7.040 $ .... are you serious? Hm, check bank account, should be possible.Dealers (lol, marijuana please) for Europe. Baader Planetarium Germany.Price 12.602 $Having a Down and autistic child (10 years old, can not speak and we suppose that he isn't hearing) but somehow fascinated by light (a friend of mine could do some chair for him that can be moved together with the mount) I guess that's it... sorry my little friend not in this solar system.

Take careEmil



----------------------------

#49429 Nov 1, 2015

A custom dobsonian refractor with a Nasmyth focus configuration mightwork well for him. Or an SCT with a Nasmyth focus modification.  ChristopherEricksonConsulting EngineerSummit KineticsWaikoloa, HI96738www.summitkinetics.com

 



From: ap-gto@yahoogroups.com[mailto:ap-gto@yahoogroups.com] Sent: Saturday, October 31, 201510:05 PMTo: ap-gto@yahoogroups.comSubject: [ap-gto]1100GTO



Hello,sorry I have to rage a littlebit at this one.Official website 7.040 $ ....are you serious? Hm, check bank account, should be possible.Dealers (lol, marijuana please)for Europe. Baader Planetarium Germany.Price 12.602 $Having a Down and autistic child(10 years old, can not speak and we suppose that he isn't hearing) but somehowfascinated by light (a friend of mine could do some chair for him that can bemoved together with the mount) I guess that's it... sorry my little friend notin this solar system.

Take careEmil



----------------------------

#49600 Nov 21, 2015

I'm very excited to be receiving my new 1100GTO mount in a couple weeks! This is my first AP product. Due to a long list of purchases I'll be making soon, I opted for the current special deal, and for now, went without the hand controller. I would like to control the mount with my computer for imaging purposes, as I did with my previous Celestron CGE mount. I use Stellurium, BYOE, PHD, Astrotortilla and other software.

Is there some kinda guide around for this type of control of AP mounts without the keypad?

I was hopping not to have to purchase the new APPC program immediately if possible? It's on the list to purchase, but I was hoping for some initial work just using the Ascom driver. Is this possible?  Whats throwing me is alignment. How is the mount aligned without a keypad or APPC? Is the mount even aligned at all other than polar? The Celestron mount had a keypad and a 3 star alignment was done before computer control was initiated. I read something about syncing to a star on each side of the meridian? How does that work, especially without APPC, or the keypad?

That's my main question. I don't understand how the Planetarium program will know where the scope is currently pointed.



----------------------------

#49601 Nov 21, 2015

Hi,

it very important, that you polar aline the mount. What will be your way to do that?I think you should download the mount instructions and try to understand how this great mount is really working. If you have done that it is quiet easy to work with it.

Konstantin



Konstantin v. Poschinger

Hammerichstr. 522605 Hamburg040/88057470171 1983476

Am 21.11.2015 um 23:10 schrieb billz1@... [ap-gto] ap-gto@yahoogroups.com>:

I'm very excited to be receiving my new 1100GTO mount in a couple weeks! This is my first AP product. Due to a long list of purchases I'll be making soon, I opted for the current special deal, and for now, went without the hand controller. I would like to control the mount with my computer for imaging purposes, as I did with my previous Celestron CGE mount. I use Stellurium, BYOE, PHD, Astrotortilla and other software.

Is there some kinda guide around for this type of control of AP mounts without the keypad?

I was hopping not to have to purchase the new APPC program immediately if possible? It's on the list to purchase, but I was hoping for some initial work just using the Ascom driver. Is this possible?  Whats throwing me is alignment. How is the mount aligned without a keypad or APPC? Is the mount even aligned at all other than polar? The Celestron mount had a keypad and a 3 star alignment was done before computer control was initiated. I read something about syncing to a star on each side of the meridian? How does that work, especially without APPC, or the keypad?

That's my main question. I don't understand how the Planetarium program will know where the scope is currently pointed.



----------------------------

#49603 Nov 21, 2015

Thanks, That makes sense.  I read through the documentation but didn't really see anything about doing that. My CGE was an EQ mount but still needed the 3 star alignment.  I guess  this is what I hear referred to as a model and is not really a true alignment like you do for polar.?

Is that something that would be done when ever the mount is powered up?

Does using APPC change doing this initial manual pointing step?



----------------------------

#49604 Nov 21, 2015

Hi,

once your mount is polar aligned you just have to power it up again, initialize it with the driver program and start slewing to a object. Thats all!

Konstantin



Konstantin v. Poschinger

Hammerichstr. 522605 Hamburg040/88057470171 1983476

Am 22.11.2015 um 00:20 schrieb billz1@... [ap-gto] ap-gto@yahoogroups.com>:



Thanks, That makes sense.  I read through the documentation but didn't really see anything about doing that. My CGE was an EQ mount but still needed the 3 star alignment.  I guess  this is what I hear referred to as a model and is not really a true alignment like you do for polar.?

Is that something that would be done when ever the mount is powered up?

Does using APPC change doing this initial manual pointing step?



----------------------------

#49613 Nov 22, 2015

It was a typo, and should be BYEOS

Home

Home Deepsky Imaging, Planetary Imaging, Easy Focusing, Smart User Interface, and More.







----------------------------

#49614 Nov 22, 2015

This is all very good information, and looks pretty simple. Thanks again. I can already see this group will be very helpful. I will be adding APCC soon but as you know I have a lot to purchase in the next week.

I still need the pier adapter ( will be mounted on a custom square topped 10" pier in a Observatory.

I need to decided what counterweights to purchase first, and what saddle. For now the scopes are a  AT6RC, a EdgeHD 8",  a 80MM APO, and I want to had a 110mm to 130mm imaging refractor.  Power will be from a 13.8V Astron  ham supply



----------------------------

#49615 Nov 22, 2015

Looks like your heaviest scope is C-8 EdgeHD. I had C-8 EdgeHD mounted on A-P Mach1GTO and I did not have any issues. See my photos at:

peternagy.smugmug.com/Telescopes/Old-Equipment/

I believe the heaviest weight was 18lbs with Mach1 and C-8 EdgeHD. Since you are getting a heavier mount and CW shaft, I do not think you need any heavier than 18lbs. I currently have 5lbs, 10lbs, and 18lbs CWs and I suggest to get all three CWs.



Now I am using TEC 140 and A-P1100GTO, I am currently using 18lbs and 5lbs weights:

peternagy.smugmug.com/Telescopes/Current-Equipment/

It's best to use longest possible saddle. I use A-P 16" saddle part # DOVELM162 for both Mach1 and 1100GTO. It has three knobs meaning that you can use short or long dovetail setup and it's only $110 more than 8" saddle.



Peter



---In ap-gto@yahoogroups.com, billz1@...> wrote :

This is all very good information, and looks pretty simple. Thanks again. I can already see this group will be very helpful. I will be adding APCC soon but as you know I have a lot to purchase in the next week.

I still need the pier adapter ( will be mounted on a custom square topped 10" pier in a Observatory.

I need to decided what counterweights to purchase first, and what saddle. For now the scopes are a  AT6RC, a EdgeHD 8",  a 80MM APO, and I want to had a 110mm to 130mm imaging refractor.  Power will be from a 13.8V Astron  ham supply



----------------------------

#49616 Nov 22, 2015

For the OTAs you have, the AP Dove 15 dovetail and the AP 15" sliding bar (SB1500) would work pretty well. The extra length of the 15" bar gives you lots of room for adjustment once you add imaging equipment.For counter weights, a 10lb and two 5lb would probably work to start. 

 Don Anderson



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#50322 Jan 11, 2016

When running the Periodic Error routine in PEMpro to create a new curve, should my 1100GTO-AEL encoders be off or on?

I turned PEC off in both PEMpro and APCC, but APCC still says PEM=Encoders (which is what it always says) so it's not clear if PEC is on or off.

Eric



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#50330 Jan 12, 2016

The answer to that would depend on where the noise is greater and precision is lower: in the PE curve, or the encoders. :-) Generally speaking, it's usually best to refine the hardware calibration, but that is not always the case - and what, really, is the difference between a PE calibration and encoders? 

Sent from my iPad

On Jan 11, 2016, at 9:03 PM, naperastro@... [ap-gto] ap-gto@yahoogroups.com> wrote:



>> Why would you bother to create a PEM curve? The encoders take care of PE. No need to do anything.

The AP documentation (or web site - can't remember which) said a PEM curve is added to each mount at the factory and if the user wants a more accurate curve, to run one with multiple cycles.  If the encoders take care of PE why add a curve at the factory?With the encoders on, is PEM needed at all, or should I disable it in APPC?



----------------------------

#50331 Jan 12, 2016

The mount curve is very accurate. No need to update it for many moons. Unless you plan to turn off the encoder corrections, but why do that? Rolando  -----Original Message-----

From: naperastro@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Mon, Jan 11, 2016 11:03 pm

Subject: [ap-gto] Re: PEMro on 1100GTO-AEL





>> Why would you bother to create a PEM curve? The encoders take care of PE. No need to do anything.



The AP documentation (or web site - can't remember which) said a PEM curve is added to each mount at the factory and if the user wants a more accurate curve, to run one with multiple cycles.  If the encoders take care of PE why add a curve at the factory?With the encoders on, is PEM needed at all, or should I disable it in APPC?



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#50333 Jan 12, 2016

The encoders are very precise, so if they are on, the tracking will be exactly sidereal. The PEM is simply a backup in case the encoders are not used for some reason. The mount servo always has this in memory regardless of whether you buy the encoder option or not.  Rolando  -----Original Message-----

From: Ron Wodaski rwodaski@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Tue, Jan 12, 2016 9:44 am

Subject: Re: [ap-gto] Re: PEMro on 1100GTO-AEL





The answer to that would depend on where the noise is greater and precision is lower: in the PE curve, or the encoders. :-) Generally speaking, it's usually best to refine the hardware calibration, but that is not always the case - and what, really, is the difference between a PE calibration and encoders? 



Sent from my iPad

On Jan 11, 2016, at 9:03 PM, naperastro@... [ap-gto] ap-gto@yahoogroups.com> wrote:





>> Why would you bother to create a PEM curve? The encoders take care of PE. No need to do anything.

The AP documentation (or web site - can't remember which) said a PEM curve is added to each mount at the factory and if the user wants a more accurate curve, to run one with multiple cycles.  If the encoders take care of PE why add a curve at the factory?With the encoders on, is PEM needed at all, or should I disable it in APPC?







----------------------------

#50350 Jan 12, 2016

What is meant by .mount curve. Rolando? Thanks,Lance From: mailto:ap-gto@yahoogroups.comSent: Tuesday, January 12, 2016 8:09 AMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] Re: PEMro on 1100GTO-AEL



----------------------------

#50356 Jan 13, 2016

Mr. Rolando,

Very thoughtful and patient explanation regarding PEC and the mount curve.  After some time of "burning in the mount gears" would a recalibration of the Periodic Error Management Curve be recommended?  Probably so, but as you say many, many moons will pass before needing this readjustment of the PEM curve.  I guess each mount is different, and you would notice a small deviation from the standard PE over a period of time. At one point, if you desire to test the limits of unguided exposure capabilities, you would fool with the PEM curve for the mount to readjust to conditions after a few months or years of use.

Emilito



----------------------------

#51851 Apr 2, 2016

Hi All,

This is my first post on this forum, so a small introduction seems in order.  I've been involved in astronomy since I was a kid in Boy Scouts and got into astrophotography about 5 years ago.  Since then I've been pretty active in various communities, local and online.  I mostly post in the Cloudy Nights B&II forum (posting under David Ault) and The Astro Imaging Channel but have spread out a bit more lately (I haven't been as active lately due to a critical project at work, but that won't last forever - although it seems like it at the moment).

I will be purchasing an 1100GTO fairly soon (in about a week if all goes according to plan).  Towards that end I had some questions about tripods and would like to see what everyone uses or recommends.

I am primarily a mobile imager and will frequently be setting up where the ground is not level so here is what I am looking for in a tripod / portable pier:

- capability of dealing with rough uneven terrain- lightweight- easy leveling- good vibration dampening- collapsible for easy transport- budget: $2k, although that could be stretched some for the perfect combination

I have a Losmandy G11 tripod and worst case I can just get the LT2APM + 119SFA adapters, however that tripod isn't exactly light weight nor collapsible (at least not without separating the parts) and is a pain to level.  It is however capable of dealing with very uneven terrain and has good vibration dampening characteristics.

I probably won't be mounting anything outside of a 130mm F/7 refractor or an 8" SCT on the 1100GTO for a while, although something on the order of a 14" RC/IDK may be in my future a few years down the road.

These are the mounts I've identified that might work:- My G11 Tripod + 119SFA + LT2APM:  Cheapest by far.- Astro-Physics 8X32 portable pier:  I'm worried about vibrations and dealing with uneven terrain for this.

- ATS 8X36 + 119SFA:  The price is pushing it.  Not the lightest but not the heaviest either.  Not sure how capable it is of dealing with uneven terrain.- Avalon TPOD T130 + 119SFA:  This seems like it may be too lightweight and would likely limit future growth.  Nice and light though.- Losmandy FHD-MA + 119SFA + LT2APM:  Higher capacity than my tripod, fold-able so it is a little more transportable.  Not lightweight and just as difficult to level.- Software Bisque Pyramid Pier + 119SFA:  I have no idea if the flat surface adapter will work with this tripod, however it seems the closest in terms of weight, ease of leveling and capacity.  It is up there in price though.- Rob Miller TRI36M/L:  I wish!  Unless someone has a spare running around this doesn't seem like a possibility.

Are there any other recommendations?  Any thoughts on the list I have?  Are some of my notes incorrect or missing something?  Do you have experience with any of these combinations?

Let me know what you think and thanks for the help!



----------------------------

#51852 Apr 2, 2016

Keep the Losmandy G11.Get the appropriate mounting hardware.Simple, sturdy, legs level (unlike AP's Piers)And inexpensive since you already haveone.Kent Kirkley

Sent from my iPhone

On Apr 2, 2016, at 10:26 AM, dnault42@... [ap-gto] ap-gto@yahoogroups.com> wrote:



Hi All,

This is my first post on this forum, so a small introduction seems in order.  I've been involved in astronomy since I was a kid in Boy Scouts and got into astrophotography about 5 years ago.  Since then I've been pretty active in various communities, local and online.  I mostly post in the Cloudy Nights B&II forum (posting under David Ault) and The Astro Imaging Channel but have spread out a bit more lately (I haven't been as active lately due to a critical project at work, but that won't last forever - although it seems like it at the moment).

I will be purchasing an 1100GTO fairly soon (in about a week if all goes according to plan).  Towards that end I had some questions about tripods and would like to see what everyone uses or recommends.

I am primarily a mobile imager and will frequently be setting up where the ground is not level so here is what I am looking for in a tripod / portable pier:

- capability of dealing with rough uneven terrain- lightweight- easy leveling- good vibration dampening- collapsible for easy transport- budget: $2k, although that could be stretched some for the perfect combination

I have a Losmandy G11 tripod and worst case I can just get the LT2APM + 119SFA adapters, however that tripod isn't exactly light weight nor collapsible (at least not without separating the parts) and is a pain to level.  It is however capable of dealing with very uneven terrain and has good vibration dampening characteristics.

I probably won't be mounting anything outside of a 130mm F/7 refractor or an 8" SCT on the 1100GTO for a while, although something on the order of a 14" RC/IDK may be in my future a few years down the road.

These are the mounts I've identified that might work:- My G11 Tripod + 119SFA + LT2APM:  Cheapest by far.- Astro-Physics 8X32 portable pier:  I'm worried about vibrations and dealing with uneven terrain for this.

- ATS 8X36 + 119SFA:  The price is pushing it.  Not the lightest but not the heaviest either.  Not sure how capable it is of dealing with uneven terrain.- Avalon TPOD T130 + 119SFA:  This seems like it may be too lightweight and would likely limit future growth.  Nice and light though.- Losmandy FHD-MA + 119SFA + LT2APM:  Higher capacity than my tripod, fold-able so it is a little more transportable.  Not lightweight and just as difficult to level.- Software Bisque Pyramid Pier + 119SFA:  I have no idea if the flat surface adapter will work with this tripod, however it seems the closest in terms of weight, ease of leveling and capacity.  It is up there in price though.- Rob Miller TRI36M/L:  I wish!  Unless someone has a spare running around this doesn't seem like a possibility.

Are there any other recommendations?  Any thoughts on the list I have?  Are some of my notes incorrect or missing something?  Do you have experience with any of these combinations?

Let me know what you think and thanks for the help!







----------------------------

#51856 Apr 2, 2016

Completely agree with Kent,     The Losmandy tripod is great . been carrying my RC-14.5on my AP-900/AP-1200 for the past four years, acting as a .permanent. backyardpier. Consider getting a used, reasonably inexpensive, steady, field portabletripod for now, and set up your current Losmandy tripod on a .permanent homespot., its feet planted on three cinder blocks buried in the ground. Unlike thehassle of pouring a permanent concrete pier, ruining property resale value,there is no risk of some neighbour.s new yard light ruining your current homesetup ... because it is easily relocated to a better spot blocked from thelight.     As for ease of leveling in the field, the leg extensionpipes have lots of range, and in field use, the platform doesn.t need to be.perfectly bubble level., since you are going to adjust both the Alt and Az ofthe mount after setup anyway, using the RAPAS. Even with the mount slightlytilted, these  adjustments compensate for (slightly) uneven ground.     You would get two benefits from the two tripod approach.Easy packing up for travel, and when it returns home, you won.t have tore-level, re-align, and fuss with the tripod again. Just drop the mount onto theLosmandy, quickly ready for home use. Eventually your home setup may become apermanent one, with no need and expense of a concrete pier.     To that end, consider buying the Losmandy MAoptional  (tripod/post) attachment, which could be adapted to the top ofyour travelling tripod (most easily, the AP portable with another set of LT2APM+ 119SFA adapters ). Without the extra adapter set, oyu would have to futz withthose tiny 6 screws on  the base, at every switch . i.e. four times.     That way, you just need to loosen three Losmandy handknobs (also available from AP) to quickly switch between  tripods . i.e.home tripod versus whatever you buy for travel. I did that for a while as I keptthe mount in the house and quickly and easily dropped it into the top of theLosmandy tripod. Its rock solid stability and ease of AP mount setup was a hugebenefit. For my use, I would never choose anything else. Joe Z. From: mailto:ap-gto@yahoogroups.comSent: Saturday, April 02, 2016 11:40 AMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] Portable tripods for the1100GTO



----------------------------

#51863 Apr 2, 2016

First, welcome to the AP fold! As for tripods/piers, I have a Mach1 and a 900GTO and I use a(modified*) Losmandy LW tripod under my Mach1 and a Losmandy non-folding HDtripod under my 900GTO.  Both tripods work great but I am only using themsimply because I already owned them and it was an easy direction to go. Frankly I think they are a tad ugly. My long-range plan is for an Eagle pier under the Mach1 and who-knowswhat I'll do for the 900GTO.  Maybe I'll get the Losmandy folding HD tripodand re-use my existing legs for now. * The LW tripod came with a center tray on horizontal leg supportstruts and the whole assembly was wobbly and unstable the way it was initiallydesigned.  I removed the struts and turned the round tray into a spreaderby adding a center all-thread rod to the head.  This improved the stabilityof the LW tripod by about 2,000%.  ChristopherEricksonConsulting EngineerSummit KineticsWaikoloa, HI96738www.summitkinetics.com

 



From: ap-gto@yahoogroups.com[mailto:ap-gto@yahoogroups.com] Sent: Saturday, April 02, 2016 5:27AMTo: ap-gto@yahoogroups.comSubject: [ap-gto] Portabletripods for the 1100GTO



HiAll,

This is my first post on this forum, so a small introduction seems inorder.  I've been involved in astronomy since I was a kid in Boy Scouts andgot into astrophotography about 5 years ago.  Since then I've been prettyactive in various communities, local and online.  I mostly post in theCloudy Nights B&II forum (posting under David Ault) and The Astro ImagingChannel but have spread out a bit more lately (I haven't been as active latelydue to a critical project at work, but that won't last forever - although itseems like it at the moment).

I will be purchasingan 1100GTO fairly soon (in about a week if all goes according to plan). Towards thatend I had some questions about tripods and would like to see what everyone usesor recommends.

I am primarily amobile imager and will frequently be setting up where the ground is not level sohere is what I am looking for in a tripod / portable pier:

- capability of dealing with rough uneven terrain- lightweight- easy leveling- good vibration dampening- collapsible for easy transport- budget: $2k, although that could be stretched some for the perfectcombination

I have a Losmandy G11 tripod and worst case I can just get the LT2APM +119SFA adapters, however that tripod isn't exactly light weight nor collapsible(at least not without separating the parts) and is a pain to level.  It ishowever capable of dealing with very uneven terrain and has good vibrationdampening characteristics.

I probably won't be mounting anything outside of a 130mm F/7 refractor oran 8" SCT on the 1100GTO for a while, although something on the order of a 14"RC/IDK may be in my future a few years down the road.

These are the mounts I've identified that might work:- My G11 Tripod +119SFA + LT2APM:  Cheapest by far.- Astro-Physics 8X32portable pier:  I'm worried about vibrations and dealing with uneventerrain for this.

- ATS 8X36 + 119SFA: The price is pushing it.  Not the lightest but not the heaviesteither.  Not sure how capable it is of dealing with uneventerrain.- Avalon TPOD T130 + 119SFA:  This seems like it may be toolightweight and would likely limit future growth.  Nice and lightthough.- Losmandy FHD-MA + 119SFA + LT2APM:  Higher capacity than my tripod,fold-able so it is a little more transportable.  Not lightweight and justas difficult to level.- Software Bisque Pyramid Pier + 119SFA:  I have no idea if the flatsurface adapter will work with this tripod, however it seems the closest interms of weight, ease of leveling and capacity.  It is up there in pricethough.- Rob Miller TRI36M/L:  I wish!  Unless someone has a sparerunning around this doesn't seem like a possibility.

Are there any other recommendations?  Any thoughts on the list I have? Are some of my notes incorrect or missing something?  Do you haveexperience with any of these combinations?

Let me know what you think and thanks for the help!







----------------------------

#51870 Apr 2, 2016

Thanks everyone!

I clearly haven't thought through all of the implications of this mount purchase yet, so reading through your responses is bring up additional questions for me.  For example, I haven't decided if I will sell the G11 or keep it around for light duty outreach work.  I also have a CG-5 which I can use for this purpose making the G11 or CG-5 redundant.  If I sell it, then I have to decide if the tripod goes with it, which clearly has implications for what I decide here.



Kent, Joe, Christopher, it's good to hear your feedback on the Losmandy tripod (mine is the non folding version by the way).  It has certainly worked well for my G11 in many situations, but I wasn't sure if it would be stable with the 1100GTO.  Sounds like it will be fine.

Peter, thanks for the pictures, they help put the scale of things in perspective.  The ATS portable pier looks very robust.

Joe, keeping the G11 tripod around for a semi permanent setup in the backyard is not something I considered.  I'll have to think about that.  I don't live in the best area so I tend not to leave any equipment outside un-attended.

Christopher, I agree they aren't the prettiest tripods (very functional looking) and the 1100GTO sitting on top of the G11 tripod looks a little odd from some of the pictures I've seen (a bit top heavy).  The SB Pyramid Pier has the most pleasing aesthetics to my eyes, although if I was really going for a nice looking setup I'd want the colors to match (meaning white or black legs) ;)

By the way, does anyone know if the 119SFA is enough to connect to the Pyramid Pier or TPOD or would I need another adapter in between them?

Thanks again guys.  This gives me more to think about.

Regards,David Ault



----------------------------

#51873 Apr 2, 2016

A G-11 HD tripod will work great under a 1100GTO.  Nice andsolid.  That is also what I put under the 1100GTO at the OnizukaVIS. I suspect that once you get your AP mount and get used to it, theG-11 and CG-5 will gather dust in a closet someplace.  Or end up onAstromart.  It's just too hard to go back to using them.  The G-11 isa noodle compared to any AP mount.  I have a G-11 head that lives in abox.  I replaced it with a Mach1 and never looked back.  ChristopherEricksonConsulting EngineerSummit KineticsWaikoloa, HI96738www.summitkinetics.com

 



From: ap-gto@yahoogroups.com[mailto:ap-gto@yahoogroups.com] Sent: Saturday, April 02, 2016 11:50AMTo: ap-gto@yahoogroups.comSubject: [ap-gto] Re: Portabletripods for the 1100GTO



Thankseveryone!

I clearly haven't thought through all of the implications of this mountpurchase yet, so reading through your responses is bring up additional questionsfor me.  For example, I haven't decided if I will sell the G11 or keep itaround for light duty outreach work.  I also have a CG-5 which I can usefor this purpose making the G11 or CG-5 redundant.  If I sell it, then Ihave to decide if the tripod goes with it, which clearly has implications forwhat I decide here.



Kent, Joe, Christopher, it's good to hear your feedback on the Losmandytripod (mine is the non folding version by the way).  It has certainlyworked well for my G11 in many situations, but I wasn't sure if it would bestable with the 1100GTO.  Sounds like it will be fine.

Peter, thanks for the pictures, they help put the scale of things inperspective.  The ATS portable pier looks very robust.

Joe, keeping the G11 tripod around for a semi permanent setup in thebackyard is not something I considered.  I'll have to think about that. I don't live in the best area so I tend not to leave any equipment outsideun-attended.

Christopher, I agreethey aren't the prettiest tripods (very functional looking) and the 1100GTOsitting on top of the G11 tripod looks a little odd from some of the picturesI've seen (a bit top heavy).  The SB Pyramid Pier has the most pleasingaesthetics to my eyes, although if I was really going for a nice looking setupI'd want the colors to match (meaning white or black legs) ;)

By the way, doesanyone know if the 119SFA is enough to connect to the Pyramid Pier or TPOD orwould I need another adapter in between them?

Thanks again guys. This gives me more to think about.

Regards,David Ault



----------------------------

#51878 Apr 2, 2016

I put my AP900 on an old C14 HD tripod.  The tripod was less than $300 and is extremely stable but leveling requires the use of blocks under the footpads...not very elegant but effective.

groups.yahoo.com/neo/groups/ap-gto/photos/photostream/lightbox/1576981964?orderBy=mtime&sortOrder=desc&photoFilter=ALL#zax/1576981964



Food for thought.

JohnCCD-FreakWD5IKX



----------------------------

#51879 Apr 2, 2016

Here is another shot showing that the tripod is just the right height for use inside my SkyBox portable observatory.

groups.yahoo.com/neo/groups/ap-gto/photos/albums/1328175335/lightbox/1135332000?orderBy=ordinal&sortOrder=asc&photoFilter=ALL#zax/1135332000

JohnCCD-FreakWD5IKX  



----------------------------

#51894 Apr 3, 2016

Thanks for the clarification Christopher.  I'm definitely looking forward to getting the 1100GTO!

Regards,David



----------------------------

#52182 Apr 20, 2016

I did purchase an 1100GTO and am now in wait mode.  Keeping my fingers crossed for early May.  I ordered the adapters necessary to mate it to my G11 tripod and will use that configuration for the foreseeable future.  Thanks for the suggestions everyone!

Regards,David



----------------------------

#52373 May 4, 2016

I received QHY PoleMaster a few days ago and got an idea of mounting it on Dec axis gearbox using two existing 5/16" threaded holes instead of polar sight hole. See my pictures at:

peternagy.smugmug.com/Telescopes/PoleMaster-on-A-P1100GTO/

I had to get longer 5/16"-24 pan head screws from McMaster-Carr to mount the plywood to the gearbox.



I have not yet tested PoleMaster due to heavy clouds and rain for the rest of the week. If it does work, I will probably replace the plywood with 1/4" thick aluminum plate.



The adapter for A-P1100 from QHY is not yet available so I made my own.



Peter







----------------------------

#52394 May 6, 2016

You can load the mount with 50kg scope weight. Then you can add as many counterweight as necessary to balance that weight. Rolando  -----Original Message-----

From: carlos49gib@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Fri, May 6, 2016 6:35 am

Subject: [ap-gto] AP 1100GTO weight capacity





I am changing scope from a Tak106ed to a Tak cca250, the latter weight around 23kg, the image train another 4kg. Now the mount payload is around 50kgs so seem fine, but I am confuse with AP website reading, when it says 'not including counterweights' I suppose that the 50kgs is net weight, in other words that I can put a maximum (not that I going to) up to 50kg on top of the mount and the counterweights are included in this 50kgs.



Thanks



----------------------------

#52402 May 6, 2016

The capacity rating for AP mounts is for equipment load. So the 50kg rating is in addition to whatever counterweight is needed to balance your system. The payload rating is based on imaging equipment. You can easily push your 1100 over the 50kg payload for visual use. Especially if the OTA is compact.



----------------------------

#52403 May 6, 2016

It says 'not including counterweights' and it means exactly that. If AP says the mount can hold 50kg it means 50kg of your gear and another 50kg of counterweights to counterbalance that. A total payload of around 100kg in this case.

---In ap-gto@yahoogroups.com, carlos49gib@...> wrote :

I am changing scope from a Tak106ed to a Tak cca250, the latter weight around 23kg, the image train another 4kg. Now the mount payload is around 50kgs so seem fine, but I am confuse with AP website reading, when it says 'not including counterweights' I suppose that the 50kgs is net weight, in other words that I can put a maximum (not that I going to) up to 50kg on top of the mount and the counterweights are included in this 50kgs.

Thanks



----------------------------

#52994 Jun 23, 2016

I own a wonderful A-P1100GTO mount and I have been pretty successful imaging with this mount. I have a question. What are these two 3/8"-24 panhead bolts used for on both RA and Dec axes gearboxes? They are very useful for me making a very simple bracket to mount QHY PoleMaster as shown in the following link:

peternagy.smugmug.com/Telescopes/PoleMaster-on-A-P1100GTO/

These bolts make my lives a little easier. Now I noticed the latest A-P mounts with new gearboxes no longer have these two pan head bolts for A-P 1100GTO and A-P 1600GTO mounts? Would it be possible to go back to the drawing board and retain drilling and tapping these two holes on all A-P gearboxes for future mounts. They are not just necessarily for QHY PoleMaster but may be useful for other purposes.

Thanks,Peter



----------------------------

#52995 Jun 23, 2016

I meant 5/16"-24 panhead placeholder screws (not 3/8"). Sorry about the confusion.

Peter

---In ap-gto@yahoogroups.com, pnagy@...> wrote :

I own a wonderful A-P1100GTO mount and I have been pretty successful imaging with this mount. I have a question. What are these two 3/8"-24 panhead bolts used for on both RA and Dec axes gearboxes? They are very useful for me making a very simple bracket to mount QHY PoleMaster as shown in the following link:

peternagy.smugmug.com/Telescopes/PoleMaster-on-A-P1100GTO/

These bolts make my lives a little easier. Now I noticed the latest A-P mounts with new gearboxes no longer have these two pan head bolts for A-P 1100GTO and A-P 1600GTO mounts? Would it be possible to go back to the drawing board and retain drilling and tapping these two holes on all A-P gearboxes for future mounts. They are not just necessarily for QHY PoleMaster but may be useful for other purposes.

Thanks,Peter



----------------------------

#52998 Jun 24, 2016

That's great news!  I met with the rep at NEAF  who tried to sell me on something that sits in the threads on A-Ps 1100 there with A-Ps permission of course.  I told him no way it has to thread in and he said a lot of guys buy them this way.  I said it's not worth risking the threads nor take the terrible time to tighten their set screw awkwardly in the hole.  As I requested this adapter a long, long time ago with many 1100 owners also following suit, so this is very encouraging.  In case they do not notify those of us who did request these real adapters please keep the group informed of their progress.

Pete nice alternative but you really have to keep that axis positioned so I hope you get one of these too when you move to the new style gear box.

Thanks!

John A. Sillasen



----------------------------

#53000 Jun 24, 2016

Peter,  They simply prevent dust from entering the gearbox while allowing access to the screws within.  Regards,  George  George WhitneyAstro-Physics, Inc.Phone:  815-282-1513Email:  george@...

 From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

Sent: Friday, June 24, 2016 4:49 PM

To: ap-gto@yahoogroups.com

Subject: [ap-gto] Re: Two panhead bolts on gearboxes for A-P1100GTO?



----------------------------

#53009 Jun 27, 2016

Hi George,

I now understand that the two panhead screws are there as placeholders but my last question was what are the two set screws underneath the placeholder screws are for? Are they used for some kind of adjustments for internal components of the gearbox? Are the set screws something that customers should never mess with?

Thanks,Peter

---In ap-gto@yahoogroups.com, george@...> wrote :

Peter,  They are simply placeholder screws.   However, they need to be shallow and not hit the screws below.

 Regards,  George  George WhitneyAstro-Physics, Inc.Phone:  815-282-1513Email:  george@...

 From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

Sent: Saturday, June 25, 2016 1:14 AM

To: ap-gto@yahoogroups.com

Subject: RE: [ap-gto] Re: Two panhead bolts on gearboxes for A-P1100GTO?







----------------------------

#53013 Jun 28, 2016

Peter,  They hold the springs that provide the pressure for the worm / worm wheel meshing process.  Regards,  George  George WhitneyAstro-Physics, Inc.Phone:  815-282-1513Email:  george@...

 From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

Sent: Monday, June 27, 2016 6:52 PM

To: ap-gto@yahoogroups.com

Subject: RE: [ap-gto] Re: Two panhead bolts on gearboxes for A-P1100GTO?



----------------------------

#53144 Jul 17, 2016

I have had the AP1100GTO now for a over a year, basically with no issues on a permanent pier. lately I have had star trailing issues so I started to check first the mount balances, and location position etc. I always park at position 3 automatically, but this time it when directly to position park 1, having this unexpected position I took the opportunity to check with a bubble level if its when completely level and it was.

Having parked at position 1, and not position 3, I tried a few times to park at 3 (from my Lap top , not the hand control)and  it still when to position 1, so my question is, Can I unlock the RA Clutch Knobs turn the counterweight bar to face downwards (park position 3) and save as Park 3 at the 'default park position' ??

ThanksCharles



----------------------------

#53305 Jul 31, 2016

I have an AP 100GTO purchased new in December of 2015.  I can't seem to get the declination backlash adjusted as low as I would have expected for this mount.  Backlash compensation in Phd2 helps, but if the seeing is not good, the backlash makes declination guiding rough.

I have tried both the slewing adjustment called for in the manual and the balanced, none moving, technique recommended by Roland, but they end up with about the same residual backlash.

I am finally playing with PEMpro since I needed to capture the PE curve for my new CP4 controller and I will try to capture the backlash level using that.

How low should I expect the backlash to get on this mount?

Also, is there any information out on retrofitting with the new self adjusting gear boxes?

Greg



----------------------------

#53626 Aug 20, 2016

Your stars are drifting which means polar alignment is not correct. There is no 3 star alignment procedure that eliminates star drift. The best way to eliminate star drift is to do a drift alignment, or use a polar scope to nail down the polar alignment. Rolando  -----Original Message-----

From: carlos49gib@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Sat, Aug 20, 2016 5:33 pm

Subject: [ap-gto] 1100GTO star trailing





Hi , I been all week trying to solve the star trailing using the APGTO1100, I done a few polar alignment and it fine ( did three stars alignment) but every time that I taken images, the stars tails are in every stars.



The Keypad config :no 5 S:600no 6 B:600no 7 A:1no 8 T:Side



On my PC: AP V2 ASCOM Tracking Rate: siderealGuiding R:1.00xMove R:1.00xSlew R:600x



On my PC : AP V2 ASCOM Under Mount InfomThe TZ (Time Zone) is at -2 hrsIn the Keypad it has Time Zone (Europe Spain) +1, and summer time number 1.



Can someone check this out and see if I have it correctly setup.

p>

Thanks



Charles



----------------------------

#53627 Aug 20, 2016

Hi, i did a polar alignment with three star, prior i already used the Right Angle Polar Alignment. Also i parked the mount in position 1 and its with perfectly balance. Can it be the TZ -2 hours, as mentioned below i live in Europe Spain time zone +1, at summer period. The TZ -2 is not correct.

Thanks

Sent from my iPhone

On 21 Aug 2016, at 1:44 AM, chris1011@... [ap-gto] ap-gto@yahoogroups.com> wrote:



 

Your stars are drifting which means polar alignment is not correct. There is no 3 star alignment procedure that eliminates star drift. The best way to eliminate star drift is to do a drift alignment, or use a polar scope to nail down the polar alignment. Rolando  -----Original Message-----

From: carlos49gib@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Sat, Aug 20, 2016 5:33 pm

Subject: [ap-gto] 1100GTO star trailing





Hi , I been all week trying to solve the star trailing using the APGTO1100, I done a few polar alignment and it fine ( did three stars alignment) but every time that I taken images, the stars tails are in every stars.



The Keypad config :no 5 S:600no 6 B:600no 7 A:1no 8 T:Side



On my PC: AP V2 ASCOM Tracking Rate: siderealGuiding R:1.00xMove R:1.00xSlew R:600x



On my PC : AP V2 ASCOM Under Mount InfomThe TZ (Time Zone) is at -2 hrsIn the Keypad it has Time Zone (Europe Spain) +1, and summer time number 1.



Can someone check this out and see if I have it correctly setup.

p>

Thanks



Charles



----------------------------

#53629 Aug 21, 2016

Charles, 

Roland, who responded here,  owns Astro-Physics. I would take his advice on how to use his products. :)



Sent from my Verizon, Samsung Galaxy smartphone



----------------------------

#53718 Aug 27, 2016

Thanks steven

I have a permanent setup now for two year using the AP1100gto without major issues, the tail star started around the time i updated the hand control software, i am mot saying this is the course of the problem, but things started to go wrong after that. 

My setup consist of a takahashi 106ed, sx694, reducer 0.73, and tak60 for guiding. Last night , i did a balancing procedure and test the three parking 1,2,3 with perfect balancing. This time i did a polar alignment (1st option) using three stars and adjusting the polaris in the centre of the eye piece with the azimuth adjusting knobs, when i thought that it was polar alignment i target a star and was out again, but a lot but still out. I do astrophotography now for a bit and i like having object centered, even with solve plating. 

I mentioned about the time zone, because i feel that its important that the mount and the thesxyx / maxim dl do has equal location and time, and found it unusual that the AP ascom had -2 when actually should be +1 in summer hours. Is this an issue to make the star tails , i donot know.

Tonight i will repeat this polar alignment again and  try what Roland suggested

 Thanks

Sent from my iPhone







----------------------------

#53719 Aug 27, 2016

Charles,  My reply was way late getting to the forum. I replied the same day of the inquiry but Yahoo has a way of delaying some posts for days it seems. Roland is your best bet on getting to the bottom of this. I.m sure Roland suggested this but I would eliminate everything you can and work from basic up to find the offending issue. I just went through a ton of troubleshooting with my objects not being where they should be in the image and after a long process finally found it was due to the ASCOM driver having an incorrect focal length which conflicted with what was in another program. I had corrected the other programs entry but didn.t realize the one in the driver was wrong as well. So things like that mask the issue. Eliminate what you can and work from there. If you are using a computer program to slew the telescope disconnect the hand controller. I have my AP1200 setup in my observatory and keep the hand controller on the shelf, disconnected. The mount is controlled via my imaging software and the latest ASCOM AP driver. I don.t connect the telescope to TheSkyX unless I really need to, in fact I don.t connect the mount to any program I don.t really need to but if I do I.m using APCC and the virtual port that.s created.  Bottom line, start basic, make sure it works, and then add programs to trouble shoot. For drift alignment I use Ray.s PEMPro and it works very well but make adjustments after a period of time between each adjustment and follow Roland.s suggestions.  .From the link below: Here are some drift alignment do's and dont's:DO level the equatorial head before you start. This isn't essential but it means that azimuth adjustments won't affect elevation adjustments (or vice-versa).DO make sure that the optical train is not flexing. Mirror flop, bendy focusers etc will ruin your attempts at polar alignment.DO make the azimuth adjustment first. It isn't significantly affected by refraction since stars are moving parallel to the horizon as they cross the meridian, so you can take time to get this as accurate as you wish.DO use the polar drift method at least for the elevation adjustment if you have a view of the pole. This is quicker and more accurate than the standard declination drift method above the horizon.DO use a star in the eastern half of the sky for the elevation adjustment if you can, when using the standard method. The effects of refraction will decrease as it rises higher in the sky. Avoid anything much below about 30 degrees altitude where the effect of refraction becomes more severe.DO use a star in the same region of sky each time for the elevation adjustment when using the standard method, if you are iterating between azimuth and elevation adjustments. Otherwise you will find a different elevation adjustment each time you do it.DO approach the pole from below for the elevation adjustment - you are raising the polar axis against gravity which may give fewer problems with backlash.DON'T expect perfection - there will always be drift in hour angle and declination as a consequence of atmospheric refraction - and we need the atmosphere to breathe!DON'T fiddle on all night - an important part of drift aligning is knowing when to stop. Remember to take some images before the clouds roll in! canburytech.net/DriftAlign/DriftAlign_3.html Rolando.        Steve          From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Saturday, August 27, 2016 9:45 AMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] 1100GTO star trailing



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#53789 Aug 30, 2016

Just to thanks Roland and Steve for your advise, followed all suggestion and have a prefect alignment, took an image of 750 sec, prefect round stars

Thanks again

Charles, from Spain



----------------------------

#53791 Aug 30, 2016

Woah! Great!! Glad we could be of help. Rolando -----Original Message-----

From: carlos49gib@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Tue, Aug 30, 2016 4:51 pm

Subject: [ap-gto] Re: 1100GTO star trailing

Just to thanks Roland and Steve for your advise, followed all suggestion and have a prefect alignment, took an image of 750 sec, prefect round stars

Thanks again

Charles, from Spain



----------------------------

#54289 Oct 5, 2016

Thanks Stuart.  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Wednesday, October 05, 2016 6:10 PMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] Default Guide Speed for AP1100GTO?



----------------------------

#54329 Oct 9, 2016

Hi,******Newb Alert :)***********

What is the best way to go about getting better GoTo's with what I currently have as a setup? The mount is in an Observatory on a pier. Last night was the first real chance I have had to try and get it Polar Aligned (just visually by looking through the bore hole) and work on GoTo accuracy. Unfortunately, I am a bit limited in my choices of how to go about doing this.

I only have a refractor with an ASI1600 camera on it. I have no RAPAS or Keypad or finder scope.

I initially tried to just slew to a star (Vega) but the star was not in the FOV (I am using SGP to see what is in the FOV). So I tried slewing to Andromeda (as it is a pretty big target) and it was in the FOV, but not centered. So I centered it using the direction buttons on  APCC. I then made sure the RA/Dec were correct and hit the ReCal button. This works great for slewing to Andromeda (as no matter where I am now if I select M31 - Andromeda - the mount puts it dead center. But still no other targets are in my FOV.

What is the best method of getting the mount accurately Polar Aligned, given that I don't have a RAPAS/Keypad/finderscope so that my GoTo's will be spot on?

Also, isn't part of the point of doing a ReCal to help with the overall pointing accuracy of the mount?

As you can tell I am totally new with this mount (coming from a CGEM and the familiar 2+4 and ASPA) and would like to get this figured out. I have been through the manuals but can't find an answer to this - or at least nothing I quite understood.

Appreciate any help.

Thanks

Tony







----------------------------

#54330 Oct 9, 2016

TonyIf you got Pempro with your 1100, you can use the polar alignment wizard to nail your alignment.  If you didn't get it, you might want to purchase a copy.

Gregg

Visit my astronomy & astrophotography sitewww.greggsastronomy.com



----------------------------

#54331 Oct 9, 2016

Hi Gregg,  Yes, I do have it but haven.t cracked the cover . so to speak. If wx allows, tonight I will definitely try it out.  Thanks  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Sunday, October 09, 2016 11:19 AMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] AP1100GTO - Getting Better GoTo's



----------------------------

#54332 Oct 9, 2016

Tony,  There are several ways to go at this but that depends on what you have. You can always do a drift alignment which is handy especially if you have a etched reticle eyepiece or you can use a program like PemPro and use your camera to Polar align. If you go the PemPro route I.d suggest taking your time and allow a minute or two between corrections for things to settle down. It.s been a while for me but the directions will address most of this. After PA is done and is accurate I.d use the mapping feature in APCC. I think that.s only in the Pro version but could be wrong. This time invested should vastly improve your enjoyment of these extremely well made and supported mounts.  Steve    From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Sunday, October 9, 2016 2:07 PMTo: ap-gto@yahoogroups.comSubject: [ap-gto] AP1100GTO - Getting Better GoTo's



----------------------------

#54333 Oct 9, 2016

Tony,     PemPro is in my opinion, the finest and easiest to usesoftware product for Polar Alignment as well as generating the PEC curve foryour new mount. Ray.s on-screen step by step sequence for PA is very welldesigned . read the on-screen tips and instructions and you will really enjoythe task.

    Unless you enjoy reading documentation on PC screens, Isuggest printing the PemPro guide. I have reread it many times, and the detailed explanations with example screen shots on using PemPro for bothtasks,  are wonderful.

Joe Z.



----------------------------

#54334 Oct 9, 2016

With no polar scope, no finder scope, no hand controller and asmall-ish 4/3" camera chip (compared to a wide field eyepiece) and unknownorthogonality, you have set quite an interesting challenge foryourself. Sort of like one of those survivalist reality shows where the herogoes naked into the den of an angry grizzly, covered in bacon grease andarmed only with attitude and a Q-tip. Here are my suggestions: 1. Get a cheap diagonal and low-powered eyepiece.2. Get a polar scope.  Even a used PASILL4 is way, way-betterthan nothing.3. Get acheap unity finder scope.  Something like a Rigel Quickfinder or aTelrad.4. Learn howto drift align.5. Learn howto adjust your orthogonality.6. Optional but highly-desirable - get a new orused AP hand controller. I hope thishelps!  ChristopherEricksonConsulting EngineerSummit KineticsWaikoloa, HI96738www.summitkinetics.com

 



From: ap-gto@yahoogroups.com[mailto:ap-gto@yahoogroups.com] Sent: Sunday, October 09, 2016 8:07AMTo: ap-gto@yahoogroups.comSubject: [ap-gto] AP1100GTO -Getting Better GoTo's



Hi,******Newb Alert :)***********

What is the best way to go about getting better GoTo's with what Icurrently have as a setup? The mount is in an Observatory on a pier. Last nightwas the first real chance I have had to try and get it Polar Aligned (justvisually by looking through the bore hole) and work on GoTo accuracy.Unfortunately, I am a bit limited in my choices of how to go about doing this.



I only have a refractor with an ASI1600 camera on it. I have no RAPASor Keypad or finder scope.

I initially tried to just slew to a star (Vega) but the star was notin the FOV (I am using SGP to see what is in the FOV). So I tried slewing toAndromeda (as it is a pretty big target) and it was in the FOV, but notcentered. So I centered it using the direction buttons on  APCC. I thenmade sure the RA/Dec were correct and hit the ReCal button. This worksgreat for slewing to Andromeda (as no matter where I am now if I select M31 -Andromeda - the mount puts it dead center. But still no other targets are in myFOV.

What is the best method of getting the mount accurately PolarAligned, given that I don't have a RAPAS/Keypad/finderscope so that my GoTo'swill be spot on?

Also, isn't part of the point of doing a ReCal to help with theoverall pointing accuracy of the mount?

As you can tell I am totally new with this mount (coming from a CGEMand the familiar 2+4 and ASPA) and would like to get this figured out. I havebeen through the manuals but can't find an answer to this - or at least nothingI quite understood.

Appreciate any help.

Thanks

Tony



----------------------------

#54336 Oct 9, 2016

Hi Chris,  I do have a nice baader click lock diagonal and lots of nice eyepieces (naglers/ethos/etc). The OTA I am using is a Stellarvue SVQ100 astrograph (but I do have the adapter for visual with it).  Right now I am wishing I had gotten the RAPAS – even if only using it for the one time PA…sigh…I will probably be ordering it shortly.  I do have several 50mm finder scopes as well as several 12mm/20mm illuminated reticles – but I don’t have the correct shoe to mount them to the SVQ 100…I have one ordered but hasn’t arrived yet.  I have done DA using PHD2 with the CGEM. I will try and tackle DA with PEMPro as others have suggested.  I have no clue about adjusting for orthogonality (cone error)? But will be learning.    Thanks  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Sunday, October 09, 2016 11:33 AMTo: ap-gto@yahoogroups.comSubject: RE: [ap-gto] AP1100GTO - Getting Better GoTo's



----------------------------

#54337 Oct 9, 2016

Hi Joe,  Can you provide a link for this video.can.t find it.  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Sunday, October 09, 2016 11:40 AMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] AP1100GTO - Getting Better GoTo's







----------------------------

#54338 Oct 9, 2016

I find the easiest way to nail polar alignment is to use thePolar Alignment Tool in Sharpcap 2.9.. It will work with yourASI1600MM (same camera I have) but you need a FOV of around 1-2degrees.. That should work with your 100mm OTA.You need to be close (a couple of degrees) of polar alignmentwhen you start.. Then you let sharpcap plate solve the sky, rotateat least 90 degrees in RA, sharpcap plate solves again and showsyou the rotational axis as well as the proper location of thepolaris to be polar aligned.. Turn your alt and az controls on themount, iterate.. I have then tested the resulting polar alignmentwith drift alignment and it is close enough for my short andmedium focal length imaging.. It reports my error as always under2 arc-minutes of the pole but I wouldn't get too caught up inthat.The whole process is designed as a wizard so should be easy tolearn and be done in 10 minutes.

Michael Fulbright



On 10/9/2016 2:51 PM, 'Tony Benjamin'tonybenjamin@... [ap-gto] wrote:

.HiChris, .Ido have a nice baader click lock diagonal and lots ofnice eyepieces (naglers/ethos/etc). The OTA I am usingis a Stellarvue SVQ100 astrograph (but I do have theadapter for visual with it). .Rightnow I am wishing I had gotten the RAPAS . even if onlyusing it for the one time PA.sigh.I will probably beordering it shortly. .Ido have several 50mm finder scopes as well as several12mm/20mm illuminated reticles . but I don.t have thecorrect shoe to mount them to the SVQ 100.I have oneordered but hasn.t arrived yet. .Ihave done DA using PHD2 with the CGEM. I will try andtackle DA with PEMPro as others have suggested. .Ihave no clue about adjusting for orthogonality (coneerror)? But will be learning. . .Thanks .From:ap-gto@yahoogroups.com[mailto:ap-gto@yahoogroups.com]

Sent: Sunday, October 09, 2016 11:33 AM

To: ap-gto@yahoogroups.com

Subject: RE: [ap-gto] AP1100GTO - GettingBetter GoTo's



----------------------------

#54339 Oct 9, 2016

Hi Mike,  Thanks. I will keep it in mind but am going to try out the PEMPro wizard and see how that goes first.  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Sunday, October 09, 2016 12:12 PMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] AP1100GTO - Getting Better GoTo's



----------------------------

#54341 Oct 9, 2016

Tony,     There.s no video . I was talking about the (246page)  .Pempro26094.PDF.  (or later rev.) guide document, once youinstall PemPro.Ray did his usual professional job in writing it. You should skim throughit before going out, and just concentrate on the section describing yourintended CCD. There are sections related to other mounts besides AP, anddifferent types of video/photo capture devices.Otherwise, even without reading the guide, the screens will get you throughit . once you have specified your mount details. Couldn.t be easier. Joe



----------------------------

#54345 Oct 9, 2016

Many Thanks Joe.  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Sunday, October 09, 2016 12:32 PMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] AP1100GTO - Getting Better GoTo's



----------------------------

#54346 Oct 9, 2016

I don't have any of the programs it uses for the camera:

MaxinDL/CCDCCD Soft V5Astro ArtMeade DSI SeriesVideo

I only have SGP.

Should I download one of these? I would hate to have to start learning another program?



Thoughts?



----------------------------

#54347 Oct 9, 2016

I.m guessing I can just use the .Video. selection?  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Sunday, October 09, 2016 3:03 PMTo: ap-gto@yahoogroups.comSubject: RE: [ap-gto] AP1100GTO - Getting Better GoTo's



----------------------------

#54348 Oct 9, 2016

I think you'll find Sharpcap pretty easy to use and it is a freedownload.

When you are done with it then check it with the drift alignmenttool in PHD2 (free download).

Michael Fulbright



On 10/9/2016 6:02 PM,dvuolhhr6nx4a532a3phnju3zs6lzvlgxdl2wzaf@... [ap-gto] wrote:

.I don't have any of the programs it uses for thecamera:

MaxinDL/CCDCCD Soft V5Astro ArtMeade DSI SeriesVideo

I only have SGP.

Should I download one of these? I would hate to have tostart learning another program?



Thoughts?



----------------------------

#54351 Oct 9, 2016

Some mounting plates have a screw-hole at each end where you can turn a screw against another plate on the OTA to adjust ortho.

S





From: ap-gto@yahoogroups.com ap-gto@yahoogroups.com> on behalf of 'Christopher Erickson' christopher.k.erickson@... [ap-gto] ap-gto@yahoogroups.com>

Sent: Monday, 10 October 2016 12:17 a.m.

To: ap-gto@yahoogroups.com

Subject: RE: [ap-gto] AP1100GTO - Getting Better GoTo's 



----------------------------

#54373 Oct 11, 2016

Tony,

You need to keep in mind that go-to accuracy with these mounts is dependent on only 2 factors: Polar alignment and orthogonality (Cone Error). The CGEM mount and others like it will compensate for these two factors in their 2+ star alignment routines. Not so with the AP mounts. To get a good polar alignment, you will need to do a drift alignment, either manually or with help of a camera and software such as PemPro or PHD2. Given that you have a permanent setup, you should only have to do this once, or at most every few months. Investing in a RAPAS won't help, as it needs to be aligned as well before first use, so you still need to do the initial drift alignment even with the RAPAS. RAPAS is awesome once aligned, and its intended use is for portable setups.

Regarding cone error, this is the amount that your OTA is not orthogonal to the DEC axis and there are several methods to correct for this as others have pointed out. Regarding ReCal, once you ReCal on a target, your go-to pointing accuracy will be accurate within the general vicinity of that target even if your PA and orthogonality are slightly off. To get good full-sky accuracy, you need to have good PA. If you have good PA but poor orthogonality, you can still get good accuracy for 1/2 the sky. Just do a ReCal after a meridian flip, and your good for the other 1/2.

Gabe Cardona







----------------------------

#54374 Oct 11, 2016

Hi Gabe,  Thank you for the write up.  I did do a Polar Alignment (PA) with PHD2. I managed to get the RA/Dec lines pretty flat and the guide graph looked good. I wanted to do the PA with PEMPro 2, but it didn.t support Sequence Generator Pro (SGP). But I downloaded PEMPro Beta 3 and it does support SGP.YEAH!!  So, last night I ran the PA Wizard of PEMPro 3 and (even though PHD2 says my PA was pretty much spot on) it asked me to make some relatively .significant. adjustments to the Alt/Az knobs, which I did. Not sure how accurate you need to be with PEMPro but I did spend a fair bit of time to get both the RA and Dec to less than 1 arcmin tracking . I.m assuming this is .reasonable. as the seeing was not really conducive to getting much lower.  As far as GoTos are concerned, I think part of my problem was that I was manually entering J2000 coordinates from Stellarium into the APCC and I should have been using the RA/Dec (on date) coordinates instead? Anyway my GoTos seem to be a bit better using the RA/Dec (on date) numbers (at least the object is in the FOV of the camera).    Thanks  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Tuesday, October 11, 2016 8:13 AMTo: ap-gto@yahoogroups.comSubject: [ap-gto] Re: AP1100GTO - Getting Better GoTo's



----------------------------

#55283 Jan 11, 2017

11 is too low. I would go with anything from 12.5 volts to 18 volts. Remember there is a small drop in any DC power cable so the mount servo gets a bit less.



Rolando







-----Original Message-----From: tonybenjamin@... [ap-gto] ap-gto@yahoogroups.com>To: ap-gto ap-gto@yahoogroups.com>Sent: Wed, Jan 11, 2017 4:35 pmSubject: [ap-gto] Optimal Current for AP 1100GTO



Is there a preferred voltage for the mount or is anything from 11 - 15 volts fine?



----------------------------

#55285 Jan 11, 2017

I use 2 of these with an 1100 and a 900 that are on permanent mounts. One line goes to the mount and the other to a Rigrunner that powers camera, focuser, dew heater, etc. without any problems.

powerwerx.com/ss30dv-desktop-dc-power-supply-powerpole

Regards,Keith

Sent from my iPad



----------------------------

#55286 Jan 11, 2017

This is exactly where I was headed with this question. I want to use the powerwerx version that has the digital readout and variable power (powerwerx.com/variable-power-supply-digital-meters-30amp). I was also unsure if a continuous 14.1volts would be a problem for cameras/dew heaters/focuser/etc, I even sent an e-mail off to ZWO asking about this for the ASI1600mm-cooled. From the sounds of it your equip has no problem with the 14.1 volts?  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Wednesday, January 11, 2017 3:28 PMTo: ap-gto@yahoogroups.comSubject: RE: [ap-gto] Optimal Current for AP 1100GTO



----------------------------

#55288 Jan 12, 2017

Hi all,

considering the AP1100 as a second mount. I am not using any control computer in the observatory, so it'll have to be with good old keypad (or via wifi and my iPhone).

Now, I read the manual and noticed Park positions 0,1,2,3 and 4. Only one is a custom position if I understood well, and that's Park position 0. But, I do not think it remembers that position, and each time you want to park the mount at the custom position, you have to manually slew it there, position it and then say "now this is Park 0, go in park mode".

Maybe I am missing something, but what good is that? None of the 4 park positions of the mount "fit" the requirements introduced by the position of the mount in the corner of the observatory. Park 4 would be good, if the lens end of the scope would point in the north direction, not south (where it will be problematic for the second scope nearby). I would expect Park 0 to be a real custom position, so you can send the scope to Park 0, unless differently programmed to a new Park 0 position. So I don't need to manually position the scope back in his "parking" corner, instead of more useful things in parallel of an automatic park, like cleaning up the mess to go to bed :)

As I said, maybe I am missing something, anyone care to comment?

Thanks

Dodi



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#55290 Jan 12, 2017

Thanks Roland. So confirms what I thought. Do you know of an iPhone app that could do this (custom park position)? I am using Skysafari mostly.

It's a pity it is not a standard function of the controller/keypad though. It's often very useful in a "crowded" observatory.

D.



----------------------------

#55291 Jan 13, 2017

We are planning a new version to the keypad and have discussed additional park position options as a new feature.

 Clear Skies,  Marj ChristenAstro-Physics, Inc11250 Forest Hills RdMachesney Park, IL 61115Phone: 815-282-1513Fax: 815-282-9847www.astro-physics.com

 From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

Sent: Thursday, January 12, 2017 5:45 PM

To: ap-gto@yahoogroups.com

Subject: Re: [ap-gto] Any custom position possible on AP1100GTO with keypad?



----------------------------

#55292 Jan 13, 2017

Marj, "a new version"? I assume this is simply a firmware upgrade, but is there any thought to a hardware change that allows the display to be viewed in both daylight and night? I understand why the current design point was chosen several years ago, but perhaps .technology advances would give the advantages of the current design plus day time visibility.  Greg  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Friday, January 13, 2017 3:16 PMTo: ap-gto@yahoogroups.comSubject: RE: [ap-gto] Any custom position possible on AP1100GTO with keypad?



----------------------------

#55293 Jan 13, 2017

Greg,  Yes, .firmware upgrade. is a better term. I am not sure about a hardware change. Since we live in the cold north, as do many others, the most important reasonfor choosing the display was the ability to use the keypad in very cold temperatures.  Clear Skies,  Marj ChristenAstro-Physics, Inc11250 Forest Hills RdMachesney Park, IL 61115Phone: 815-282-1513Fax: 815-282-9847www.astro-physics.com

 From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

Sent: Friday, January 13, 2017 4:02 PM

To: ap-gto@yahoogroups.com

Subject: RE: [ap-gto] Any custom position possible on AP1100GTO with keypad?







----------------------------

#55294 Jan 13, 2017

I replaced the display in one of my AP hand controllers with a redOLED display.  It works fine down to -40F (-40C) and is more readable indaylight than the old display.  Christopher EricksonConsulting EngineerSummitKineticsWaikoloa, HI 96738www.summitkinetics.com

 



From: ap-gto@yahoogroups.com[mailto:ap-gto@yahoogroups.com] Sent: Friday, January 13, 2017 12:02PMTo: ap-gto@yahoogroups.comSubject: RE: [ap-gto] Anycustom position possible on AP1100GTO with keypad?



Marj,"a new version"? I assume this is simply a firmware upgrade, but is there anythought to a hardware change that allows the display to be viewed in bothdaylight and night? I understand why the current design point was chosen severalyears ago, but perhaps  technology advances would give the advantages ofthe current design plus day time visibility.  Greg

 From:ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Friday,January 13, 2017 3:16 PMTo: ap-gto@yahoogroups.comSubject:RE: [ap-gto] Any custom position possible on AP1100GTO withkeypad?



----------------------------

#55295 Jan 13, 2017

Christopher, that sounds exactly like what I'd like from AP. I know the current keypad is very expensive. Although it would probably be cheaper with current technology I'd be willing to pay for an improved keypad. About the only time I use the keypad is during the day when I'm doing maintenance type stuff and it's a real PAIN.  Hope Marj hears about your design point.  Greg  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Friday, January 13, 2017 6:13 PMTo: ap-gto@yahoogroups.comSubject: RE: [ap-gto] Any custom position possible on AP1100GTO with keypad?



----------------------------

#55296 Jan 13, 2017

Hi Chris,     Glad to see you have the OLED retrofit working. I toowould have suggested it, but I believe that OLED has problems with imageburn-in, if left alone and the display doesn.t change, as it does on the Keypad. depending on which menu it has been left on.Any signs of that yet?     I suppose it may take some years  of being on allthe time, to show up, whereas our use is far less frequent. Perhaps an OLEDretrofit for our Keypads could just use a user-optioned dimming function. Joe



----------------------------

#55297 Jan 13, 2017

Marj and Roland know about my AP hand controller modifications. AP is a cautious company that researches and tests changes like this verycarefully before considering them for their products.  Certainly nothingwrong with that! I could share the details of my changes but know that it willviolate your AP warranty and you wouldn't be able to expect anytechnical support from George or Howard.  I would provide support for thedisplay change but I accept no liability or obligation whatsoever if you were toattempt these changes. FWIW, the OLED display is even readable in direct sunlight.  Nota great view but certainly readable enough to use while doing solar viewing orimaging. www.digikey.com/product-detail/en/newhaven-display-intl/NHD-0420CW-AR3/NHD-0420CW-AR3-ND/5022952 Right now I have no idea if this module will work withoutmodifications or voltage tweaks in all iterations of the AP hand controller thatmight exist.  I only have three AP hand controllers and haveonly retrofitted one of them with this OLED display. Only attempt this retrofit AT YOUR OWN RISK!  Christopher EricksonConsultingEngineerSummit KineticsWaikoloa, HI96738www.summitkinetics.com

 



From: ap-gto@yahoogroups.com[mailto:ap-gto@yahoogroups.com] Sent: Friday, January 13, 2017 1:31PMTo: ap-gto@yahoogroups.comSubject: RE: [ap-gto] Anycustom position possible on AP1100GTO with keypad?



Christopher,that sounds exactly like what I'd like from AP. I know the current keypad isvery expensive. Although it would probably be cheaper with current technologyI'd be willing to pay for an improved keypad. About the only time I use thekeypad is during the day when I'm doing maintenance type stuff and it's a realPAIN.  Hope Marj hears about your design point.  Greg  From:ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Friday,January 13, 2017 6:13 PMTo: ap-gto@yahoogroups.comSubject:RE: [ap-gto] Any custom position possible on AP1100GTO withkeypad?



----------------------------

#55298 Jan 13, 2017

I haven't seen any evidence of burn-in yet but it is possible. I did this display retrofit primarily so I could use my Mach1 moreeasily for solar outreach, h-alpha imaging and eclipses. The AP hand controller supports software control of displaybrightness but that really doesn't apply to burn-in on OLED displays. Newhaven has built-in a screensaver function and it would be simple for AP toimplement the screensaver function in their hand controller firmware. Basically, hitting any key would return the display to fullbrightness.  ChristopherEricksonConsulting EngineerSummit KineticsWaikoloa, HI96738www.summitkinetics.com

 



From: ap-gto@yahoogroups.com[mailto:ap-gto@yahoogroups.com] Sent: Friday, January 13, 2017 1:53PMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] Anycustom position possible on AP1100GTO with keypad?



Hi Chris,     Glad to see you have the OLED retrofit working. I toowould have suggested it, but I believe that OLED has problems with imageburn-in, if left alone and the display doesn’t change, as it does on the Keypad– depending on which menu it has been left on.Any signs of that yet?     I suppose it may take some years  of being on allthe time, to show up, whereas our use is far less frequent. Perhaps an OLEDretrofit for our Keypads could just use a user-optioned dimming function. Joe



----------------------------

#55299 Jan 13, 2017

Marj,   Good morning , just saw this thread . I'm going to a high altitude place this month end , where temperature would be minus 25 when I go . Can I actually keep my hand pad out ( I was thinking of rolling it in a blanket )Suresh

Sent from my iPhone

On 14-Jan-2017, at 4:01 AM, Marj marj@... [ap-gto] ap-gto@yahoogroups.com> wrote:



 Greg,  Yes, .firmware upgrade. is a better term. I am not sure about a hardware change. Since we live in the cold north, as do many others, the most important reasonfor choosing the display was the ability to use the keypad in very cold temperatures.  Clear Skies,  Marj ChristenAstro-Physics, Inc11250 Forest Hills RdMachesney Park, IL 61115Phone: 815-282-1513Fax: 815-282-9847www.astro-physics.com

 From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

Sent: Friday, January 13, 2017 4:02 PM

To: ap-gto@yahoogroups.com

Subject: RE: [ap-gto] Any custom position possible on AP1100GTO with keypad?







----------------------------

#55300 Jan 13, 2017

The keypad will be fine at that temperature. No problem.



Rolando







-----Original Message-----From: Suresh Mohan Neelmegh drsureshmohan@... [ap-gto] ap-gto@yahoogroups.com>To: ap-gto ap-gto@yahoogroups.com>Sent: Fri, Jan 13, 2017 10:50 pmSubject: Re: [ap-gto] Any custom position possible on AP1100GTO with keypad?



Marj,   Good morning , just saw this thread . I'm going to a high altitude place this month end , where temperature would be minus 25 when I go . Can I actually keep my hand pad out ( I was thinking of rolling it in a blanket )Suresh

Sent from my iPhone

On 14-Jan-2017, at 4:01 AM, Marj marj@... [ap-gto] ap-gto@yahoogroups.com> wrote:



 Greg, Yes, .firmware upgrade. is a better term. I am not sure about a hardware change. Since we live in the cold north, as do many others, the most important reasonfor choosing the display was the ability to use the keypad in very cold temperatures. Clear Skies, Marj ChristenAstro-Physics, Inc11250 Forest Hills RdMachesney Park, IL 61115Phone: 815-282-1513Fax: 815-282-9847www.astro-physics.com



----------------------------

#55301 Jan 13, 2017

ChrisIs the retrofit difficult to do and is it a one way trip only that is you can't go back to the original if one wishes? 

Don Anderson



----------------------------

#55303 Jan 14, 2017

It isn't difficult and it is reversible. However like I mentioned earlier.  I don't know if the retrofitwould be the same for all iterations of the hand controller that mightexist.  The AP hand controller has been available for quite a number ofyears.  I only have three AP hand controllers that are about the same ageand I have only seen the insides of about four others.  Maybe there aren'ta bunch of different iterations but maybe there are.  I just don'tknow. FWIW, the safest upgrade path I see would be if AP wereto decide to offer OLED display upgrades.  They are the only oneswho know about all of the different iterations of their hand controller thatexist. Personally I think the OLED display upgrade to the AP handcontroller is downright awesome.  Christopher EricksonConsultingEngineerSummit KineticsWaikoloa, HI96738www.summitkinetics.com

 



From: ap-gto@yahoogroups.com[mailto:ap-gto@yahoogroups.com] Sent: Friday, January 13, 2017 8:12PMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] Anycustom position possible on AP1100GTO with keypad?



ChrisIs the retrofit difficult to do andis it a one way trip only that is you can't go back to the original if onewishes?

 DonAnderson



----------------------------

#55304 Jan 14, 2017

FWIW, here is a link to the current VFD display moduleused in the AP hand controller: www.digikey.com/product-detail/en/noritake-company-inc/CU20045-UW5J/286-1064-ND/1628376 Beautiful but expensive littlebuggers.  Christopher EricksonConsulting EngineerSummitKineticsWaikoloa, HI 96738www.summitkinetics.com

 



From: Christopher Erickson[mailto:christopher.k.erickson@...] Sent: Friday, January 13,2017 3:57 PMTo: 'ap-gto@yahoogroups.com'Subject: RE:[ap-gto] Any custom position possible on AP1100GTO withkeypad?



Marj and Roland know about my AP hand controller modifications. AP is a cautious company that researches and tests changes like this verycarefully before considering them for their products.  Certainly nothingwrong with that! I could share the details of my changes but know that it willviolate your AP warranty and you wouldn't be able to expect anytechnical support from George or Howard.  I would provide support for thedisplay change but I accept no liability or obligation whatsoever if you were toattempt these changes. FWIW, the OLED display is even readable in direct sunlight.  Nota great view but certainly readable enough to use while doing solar viewing orimaging. www.digikey.com/product-detail/en/newhaven-display-intl/NHD-0420CW-AR3/NHD-0420CW-AR3-ND/5022952 Right now I have no idea if this module will work withoutmodifications or voltage tweaks in all iterations of the AP hand controller thatmight exist.  I only have three AP hand controllers and haveonly retrofitted one of them with this OLED display. Only attempt this retrofit AT YOUR OWN RISK!  Christopher EricksonConsultingEngineerSummit KineticsWaikoloa, HI96738www.summitkinetics.com

 



From: ap-gto@yahoogroups.com[mailto:ap-gto@yahoogroups.com] Sent: Friday, January 13, 2017 1:31PMTo: ap-gto@yahoogroups.comSubject: RE: [ap-gto] Anycustom position possible on AP1100GTO with keypad?



Christopher,that sounds exactly like what I'd like from AP. I know the current keypad isvery expensive. Although it would probably be cheaper with current technologyI'd be willing to pay for an improved keypad. About the only time I use thekeypad is during the day when I'm doing maintenance type stuff and it's a realPAIN.  Hope Marj hears about your design point.  Greg  From:ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Friday,January 13, 2017 6:13 PMTo: ap-gto@yahoogroups.comSubject:RE: [ap-gto] Any custom position possible on AP1100GTO withkeypad?



----------------------------

#55307 Jan 14, 2017

My version is from 2008. It has the latest battery configuration so it may be the latest version. How is the connection between the OLED display and the existing display connector handled? Is the physical size of the OLED display similar to the existing display?

 Don Anderson



----------------------------

#55309 Jan 14, 2017

Christopher, thanks for the information. Although I have the skills needed to do the modification I have no desire to do so. I'm looking to AP for a product upgrade. Maybe by the time I'm ready to turn my AP900 in for a new 1600 it'll be standard. Although I'd buy an upgraded keypad today if it was available.  Greg  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Saturday, January 14, 2017 4:37 AMTo: ap-gto@yahoogroups.comSubject: RE: [ap-gto] Any custom position possible on AP1100GTO with keypad?







----------------------------

#55312 Jan 14, 2017

Agreed. I only made the effort to put a red OLED display in one of myhandsets because of daytime solar viewing and imaging.  I don'tthink the change is worth the effort if all of your use is going to beat night.  The existing VFD display works great at night.  Better thanthe display of all other mount makers combined.  Christopher EricksonConsulting EngineerSummitKineticsWaikoloa, HI 96738www.summitkinetics.com

 



From: ap-gto@yahoogroups.com[mailto:ap-gto@yahoogroups.com] Sent: Saturday, January 14, 2017 8:29AMTo: ap-gto@yahoogroups.comSubject: RE: [ap-gto] Anycustom position possible on AP1100GTO with keypad?



Christopher,thanks for the information. Although I have the skills needed to do themodification I have no desire to do so. I'm looking to AP for a product upgrade.Maybe by the time I'm ready to turn my AP900 in for a new 1600 it'll bestandard. Although I'd buy an upgraded keypad today if it wasavailable.  Greg

 From:ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent:Saturday, January 14, 2017 4:37 AMTo:ap-gto@yahoogroups.comSubject: RE: [ap-gto] Any custom positionpossible on AP1100GTO with keypad?



----------------------------

#55314 Jan 14, 2017

Thanks Chris. Building a ribbon conversion cable is probably tricky enough. Figuring out the pin out is something else again. Like you, I don't know if the display pin out changes with the different keypad models. Hopefully it is worthwhile enough in APs eyes to offer a conversion kit. 

Don Anderson



----------------------------

#55316 Jan 14, 2017

Chris,     Then, this also requires either a standard or specialIDC connector for the AP circuit board ? Please specify. Does the VFD detacheasily, or will I have to unsolder the ribbon? If so, can.t the same AP.s VFDribbon simply be soldered back onto the OLED, instead of making a new ribbon andanother IDC circuit board connector?     Any photos made during your  assembly wouldhelp. Joe From: 'Christopher Erickson'christopher.k.erickson@... [ap-gto]Sent: Saturday, January 14, 2017 2:54 PMTo: ap-gto@yahoogroups.comSubject: RE: [ap-gto] Any custom position possible on AP1100GTO withkeypad?



----------------------------

#55318 Jan 14, 2017

On mine, I made and soldered on a .1" spacing ribbon cable to theOLED module and put a single-line pin connector on the other end of thecable.  My hand controller had a single row of pins on the circuit boardthat I plugged on to.  I could have unsoldered the existing cable from theVFD module but I wanted to be able to easily go back and forth between the twomodules during my experimentation. But of course I have no idea if your hand controller is set upexactly the same way.  Christopher EricksonConsulting EngineerSummitKineticsWaikoloa, HI 96738www.summitkinetics.com

 



From: ap-gto@yahoogroups.com[mailto:ap-gto@yahoogroups.com] Sent: Saturday, January 14, 201710:27 AMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto]Any custom position possible on AP1100GTO with keypad?



Chris,     Then, this also requires either a standard or specialIDC connector for the AP circuit board ? Please specify. Does the VFD detacheasily, or will I have to unsolder the ribbon? If so, can’t the same AP’s VFDribbon simply be soldered back onto the OLED, instead of making a new ribbon andanother IDC circuit board connector?     Any photos made during your  assembly wouldhelp. Joe From: 'Christopher Erickson'christopher.k.erickson@... [ap-gto]Sent: Saturday, January 14, 2017 2:54 PMTo: ap-gto@yahoogroups.comSubject: RE: [ap-gto] Any custom position possible on AP1100GTO withkeypad?



----------------------------

#55327 Jan 15, 2017

The ribbon cable and connector came from my own partsinventory.  I would have to go to Digikey or Jameco to figure out thecurrent appropriate cable and connector part numbers. I need a little more time and some more internal pictures fromother hand controller owners before I will feel comfortable enough to starthelping people jeopardize their expensive AP handcontrollers.  Christopher EricksonConsultingEngineerSummit KineticsWaikoloa, HI96738www.summitkinetics.com

 



From: ap-gto@yahoogroups.com[mailto:ap-gto@yahoogroups.com] Sent: Saturday, January 14, 2017 3:01PMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] Anycustom position possible on AP1100GTO with keypad?



ChrisWhat is the SN of the keypad you moddedand where did you source the ribbon cable and connector you used for the newdisplay?

 DonAnderson



----------------------------

#55328 Jan 15, 2017

Ok. Thanks Chris. Regards 

Don Anderson



----------------------------

#55937 Mar 4, 2017

Hi,

I uploaded a pic of the PE curve that was installed into my new mount. I downloaded it from the mount into PEMPro. Does it look right? Should it be showing (or is it showing) a 5 arc/sec error?



----------------------------

#55940 Mar 4, 2017

The new AP1100 has a native spec PE less than 7 arc sec. The 1600 spec PE is 5 arc sec. 

 Don Anderson



----------------------------

#55941 Mar 4, 2017

Thanks all. My 5 arc/sec looks good. Will check it out in PEMPro to see what I get when enabled.  Cheers  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Saturday, March 04, 2017 6:11 PMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] Re: My AP1100GTO Factory Installed PE Curve - WTH??



----------------------------

#55954 Mar 5, 2017

This is my first post to the list so if I.ve fouled something up, please let me know gently ;-)



I.m trying to use SkySafari with the CP4 for observing versus imaging. I.m aware that SkySafari does not currently understand much about the CP4 other than GOTO commands. No initialization and no park appear to be the case. Thus, I am trying to use APCC to initialize or park the mount (as I would in an imaging scenario) and then switch to SkySafari so I have a hand-held, clear sky chart to look at while observing.



I.ve tried various ways of connecting the two to the mount. I.ve tried WiFi from SkySafari (on an iPad) with APCC either WiFi or USB-connected to the mount. In both cases the ASCOM driver appears to get lost after I.ve done a GOTO commanded from SkySafari. I thought that the CP4 would be constantly advising the two clients of its position, but apparently I.m wrong on that.



Am I trying to do something that was not intended in the CP4/ASCOM/APCC design? Or am I nuts doing this at all because there.s a better way I.ve overlooked? Perhaps it.s the dual connection that is not supported.



Thanks for any help,



Gary







----------------------------

#55969 Mar 7, 2017

Howard, thanks for the quick offer of help.  I.ve tried both days now trying to be in the observatory during the day and have successful cell phone coverage.  The Universe is not helping me.  

I.m going to thrash about a bit more and perhaps discover the answer.  Certainly, we have enough crummy weather for such things.  Thanks again,

Gary



On Mar 6, 2017, at 2:39 PM, Howard howard@... [ap-gto] ap-gto@yahoogroups.com> wrote:



Hi Gary,  If possible, give me a call at AP when you are with the equipment and we can walk through some things.   Mag. 7 Skies!  Howard HedlundAstro-Physics, Inc.Phone: 815-282-1513www.astro-physics.comPlease include this e-mail with your response.  P Consider the environment before printing this e-mail.  

 From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Monday, March 06, 2017 8:01 AMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] 1100GTO, GTOCP4, APCC, SkySafari



----------------------------

#56054 Mar 16, 2017

Hi, Still learning about this mount and would like to know what others are using for settings etc.  Would like to know what people use as settings in PHD2 (exp length/MinMo/Ra & Dec Aggressiveness). I've been using 5 sec exposures, for the guide camera, but wondering if going longer is a better idea? I'm normally around 30 - 40 on aggressiveness and MinMo .10);   When I go to park the mount sometimes the mount will pause on the way up towards Park 3 for a sec or so and then continue on - is this normal, like passing some sort of limit switch?; and   As a minimum, how long should this mount be able to get good round stars without guiding. I'm thinking at least 5 min?

I did some 8 min PHD2 guided Ha subs awhile back and noticed that the stars looked a little elongated (my PA was pretty close to perfect, at least according to Polemaster and the PHD2 guiding assistant. Also my balance was fine in both Dec and RA, so not sure why the stars look as they do. Its not extreme, but for the money I would like round stars. IIRC PHD2 RMS was around .8 - 1.0 - which seems high, so I am wondering if I have a screwed up setting in PHD2.

Here is a link to the slightly elongated stars In one of my subs, recently acquired.

www.dropbox.com/s/6po4axxtw28555k/Rosette_480sec_-20.0C_Ha_2017-02-24_0007.fit?dl=0



----------------------------

#56055 Mar 16, 2017

Hi there,

You should post this in the "open-phd-guiding Google group" which is the primary forum for PHD2. Andy and/or Bruce (PHD authors) may be able to help you.

Good luck,Diego



----------------------------

#56059 Mar 16, 2017

Hi,

When I get the wx I will try 20 min exposure with and without guiding to get a comparison.

I only have the standard APCC.



Thanks



----------------------------

#56060 Mar 16, 2017

Mount pausing while slewing: most probably it is doing a safety slew to prevent the scope from hitting the pier. It happens when you are slewing from a position past the meridian.



Elongated stars: check to see if you have round stars in your optics by doing a short 1 second exposure on a bright star.

What is your focal length, image scale in arc sec per pixel? Saying 0.8 - 1.0 RMS means absolutely nothing by itself. Is that arc seconds? is that pixels? How big is the pixel? For my 3500mm focal length scope a 1.0 pixel RMS would be absolute perfection.

Also, are you using an off-axis guider or a separate guide scope? If separate guide scope, you may be experiencing differential flexure.



A Min Move of .10 means you are allowing the star to drift 1.5 arc seconds before correcting the error. That seems excessively long. I normally use 0.01 to 0.02 Min Move setting in MaximDL which should be the same in PHD.



Rolando







-----Original Message-----

From: dvuolhhr6nx4a532a3phnju3zs6lzvlgxdl2wzaf@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Thu, Mar 16, 2017 10:03 am

Subject: [ap-gto] Questions: AP1100GTO (PHD2 Settings and Unguided Performance) Pauses While Slewing





Hi, Still learning about this mount and would like to know what others are using for settings etc.  Would like to know what people use as settings in PHD2 (exp length/MinMo/Ra & Dec Aggressiveness). I've been using 5 sec exposures, for the guide camera, but wondering if going longer is a better idea? I'm normally around 30 - 40 on aggressiveness and MinMo .10); 

  When I go to park the mount sometimes the mount will pause on the way up towards Park 3 for a sec or so and then continue on - is this normal, like passing some sort of limit switch?; and

  As a minimum, how long should this mount be able to get good round stars without guiding. I'm thinking at least 5 min?

I did some 8 min PHD2 guided Ha subs awhile back and noticed that the stars looked a little elongated (my PA was pretty close to perfect, at least according to Polemaster and the PHD2 guiding assistant. Also my balance was fine in both Dec and RA, so not sure why the stars look as they do. Its not extreme, but for the money I would like round stars. IIRC PHD2 RMS was around .8 - 1.0 - which seems high, so I am wondering if I have a screwed up setting in PHD2.

Here is a link to the slightly elongated stars In one of my subs, recently acquired.

www.dropbox.com/s/6po4axxtw28555k/Rosette_480sec_-20.0C_Ha_2017-02-24_0007.fit?dl=0



----------------------------

#56061 Mar 16, 2017

Hi Chris,  Thanks for the info on the slewing, IIRC it does seem to be only doing this from a position where the CWs are above the OTA, so probably past the meridian.  To date I have not seen any issues with stars in subs under 5 minutes. So optics are probably fine.  I.m using a SVQ100 (580mm) so not very long on FL. Image scale is 1.35 (ASI1600 3.8 pixels). Guiding with an Ultrastar. Yes numbers are arc/sec. I have always been using an OAG. Started with a COAG and am now using an SX OAG.  I.ve just been putting in the MinMo suggested by PHD2 guiding assistant . it is probably .01 vice the .1 I typed in.    Thanks  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Thursday, March 16, 2017 9:58 AMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] Questions: AP1100GTO (PHD2 Settings and Unguided Performance) Pauses While Slewing







----------------------------

#56063 Mar 16, 2017

After you calibrate your mount ( don't touch the settings yet , let it be the way it came ) run guiding assistant for full 10 minutes . Accept those settings . Check your RA oscillation , if it is between 25-40 you are doing great ( provided there is no flexion )Suresh

Sent from my iPhone

On 16-Mar-2017, at 8:18 PM, dvuolhhr6nx4a532a3phnju3zs6lzvlgxdl2wzaf@... [ap-gto] ap-gto@yahoogroups.com> wrote:



 Hi, Still learning about this mount and would like to know what others are using for settings etc.  Would like to know what people use as settings in PHD2 (exp length/MinMo/Ra & Dec Aggressiveness). I've been using 5 sec exposures, for the guide camera, but wondering if going longer is a better idea? I'm normally around 30 - 40 on aggressiveness and MinMo .10);   When I go to park the mount sometimes the mount will pause on the way up towards Park 3 for a sec or so and then continue on - is this normal, like passing some sort of limit switch?; and   As a minimum, how long should this mount be able to get good round stars without guiding. I'm thinking at least 5 min?

I did some 8 min PHD2 guided Ha subs awhile back and noticed that the stars looked a little elongated (my PA was pretty close to perfect, at least according to Polemaster and the PHD2 guiding assistant. Also my balance was fine in both Dec and RA, so not sure why the stars look as they do. Its not extreme, but for the money I would like round stars. IIRC PHD2 RMS was around .8 - 1.0 - which seems high, so I am wondering if I have a screwed up setting in PHD2.

Here is a link to the slightly elongated stars In one of my subs, recently acquired.

www.dropbox.com/s/6po4axxtw28555k/Rosette_480sec_-20.0C_Ha_2017-02-24_0007.fit?dl=0



----------------------------

#56066 Mar 16, 2017

If you can get 5 minutes guiding with round stars, then you can get 55 minutes with round stars, unless something is moving slightly in your camera imaging train. It would be interesting to see what your guider graph looks like, and have RA/Dec directions specified. Looking at oval star images gives no clues. An 1100 mount is many times overkill for a short focus 4" scope, it should carry that load with total ease, and not really knowing that anything is there.



Rolando







-----Original Message-----

From: 'Tony Benjamin' tonybenjamin@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Thu, Mar 16, 2017 12:29 pm

Subject: RE: [ap-gto] Questions: AP1100GTO (PHD2 Settings and Unguided Performance) Pauses While Slewing





Hi Chris, Thanks for the info on the slewing, IIRC it does seem to be only doing this from a position where the CWs are above the OTA, so probably past the meridian. To date I have not seen any issues with stars in subs under 5 minutes. So optics are probably fine. I.m using a SVQ100 (580mm) so not very long on FL. Image scale is 1.35 (ASI1600 3.8 pixels). Guiding with an Ultrastar. Yes numbers are arc/sec. I have always been using an OAG. Started with a COAG and am now using an SX OAG. I.ve just been putting in the MinMo suggested by PHD2 guiding assistant . it is probably .01 vice the .1 I typed in.  Thanks From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

Sent: Thursday, March 16, 2017 9:58 AM

To: ap-gto@yahoogroups.com

Subject: Re: [ap-gto] Questions: AP1100GTO (PHD2 Settings and Unguided Performance) Pauses While Slewing



----------------------------

#56067 Mar 16, 2017

Hi,  If the wx forecast holds I should be able to get some good testing done on the weekend. I will do a 20 min unguided and a 20 min guided. .If things don.t look good I will report back with pics and graphs.    Thanks  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Thursday, March 16, 2017 4:01 PMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] Questions: AP1100GTO (PHD2 Settings and Unguided Performance) Pauses While Slewing



----------------------------

#56069 Mar 16, 2017

I don't expect your 20 minute unguided images to show round stars. In order to do unguided, you first need to model the scope and sky with modeling software (APPM). Unless you have an encoder mount, you will also need to verify your PE correction, and for that I would recommend PEMPro. Without modeling you will get drift in both axes. There's really no way around it.



Rolando







-----Original Message-----

From: 'Tony Benjamin' tonybenjamin@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Thu, Mar 16, 2017 6:16 pm

Subject: RE: [ap-gto] Questions: AP1100GTO (PHD2 Settings and Unguided Performance) Pauses While Slewing





Hi, If the wx forecast holds I should be able to get some good testing done on the weekend. I will do a 20 min unguided and a 20 min guided.  If things don.t look good I will report back with pics and graphs.  Thanks From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

Sent: Thursday, March 16, 2017 4:01 PM

To: ap-gto@yahoogroups.com

Subject: Re: [ap-gto] Questions: AP1100GTO (PHD2 Settings and Unguided Performance) Pauses While Slewing



----------------------------

#56093 Mar 19, 2017

HI,

I wanted to try and image the Beehive Cluster tonight (beginner). When I aimed the scope at the Cluster the CWs ended up above horizontal - pretty much on the Meridian. I would like the CWs on the opposite side (West side instead of East). How do you do this manually? Can it be done in APCC or with the AP driver?



Thanks



----------------------------

#56097 Mar 20, 2017

Hi Tony,

There are several ways.

Easiest is to re-send the slew command of the same object (i.e.Beehive Cluster) the mount is currently pointing and if the mount (CP3/4 box) knows CW is higher than the scope, it will automatically flip.

Or even better, enable Meridian Flip in SGP and set how many minutes past the Meridian before flipping.

There is no direct "Flip Meridian" command.

Peter (AKA Peter in Reno at CN)

---In ap-gto@yahoogroups.com, dvuolhhr6nx4a532a3phnju3zs6lzvlgxdl2wzaf@...> wrote :

HI,

I wanted to try and image the Beehive Cluster tonight (beginner). When I aimed the scope at the Cluster the CWs ended up above horizontal - pretty much on the Meridian. I would like the CWs on the opposite side (West side instead of East). How do you do this manually? Can it be done in APCC or with the AP driver?



Thanks







----------------------------

#56098 Mar 20, 2017

Hi Tony and Peter,



Starting with APCC v1.5.0.13 (Standard and Pro) a "Pier Flip" button was added in APCC's "Move Scope" group box.



-Ray Gralak

Author of APCC (Astro-Physics Command Center): www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc

Author of PEMPro: www.ccdware.com

Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

Author of PulseGuide: www.pulseguide.com

Author of Sigma: www.gralak.com/sigma



> -----Original Message-----

> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> Sent: Monday, March 20, 2017 4:38 AM

> To: ap-gto@yahoogroups.com

> Subject: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

>

>

>

> Hi Tony,

>

> There are several ways.

>

> Easiest is to re-send the slew command of the same object (i.e.Beehive Cluster) the

> mount is currently pointing and if the mount (CP3/4 box) knows CW is higher than the

> scope, it will automatically flip.

>

> Or even better, enable Meridian Flip in SGP and set how many minutes past the

> Meridian before flipping.

>

> There is no direct "Flip Meridian" command.

>

> Peter (AKA Peter in Reno at CN)

>

>

>

> ---In ap-gto@yahoogroups.com, dvuolhhr6nx4a532a3phnju3zs6lzvlgxdl2wzaf@...>

> wrote :

>

>

>

> HI,

>

>

> I wanted to try and image the Beehive Cluster tonight (beginner). When I aimed the

> scope at the Cluster the CWs ended up above horizontal - pretty much on the

> Meridian. I would like the CWs on the opposite side (West side instead of East). How

> do you do this manually? Can it be done in APC C or with the AP driver?

>

>

> Thanks

>

>

>

>

>



----------------------------

#56100 Mar 20, 2017

Hi Ray,  So does that mean you just press that button and it will do a flip no matter where it is?  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Monday, March 20, 2017 5:06 AMTo: ap-gto@yahoogroups.comSubject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO



----------------------------

#56101 Mar 21, 2017

Hi Tony,

> So does that mean you just press that button and it will do a flip no matter where it is?



APCC will in most cases pop up a window to confirm, but the general rules are in the help file, which I have copied and pasted here:



Pier Flip Button: This button will initiate a pier flip under the following conditions:



* If the scope has crossed the meridian, the button will flip it by simply issuing a GoTo slew command to the current coordinates.



* If the scope has not yet reached the meridian, but its coordinates are within the "safe zone" of the meridian limits, a meridian offset will be set to allow the flip, followed by the GoTo slew command to the current coordinates.



* If the scope has not yet reached the meridian, and it is NOT in a safe zone vis-a-vis the meridian limits, no flip slew will occur.



-Ray Gralak

Author of APCC (Astro-Physics Command Center): www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc

Author of PEMPro: www.ccdware.com

Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

Author of PulseGuide: www.pulseguide.com

Author of Sigma: www.gralak.com/sigma

> -----Original Message-----

> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> Sent: Monday, March 20, 2017 11:27 AM

> To: ap-gto@yahoogroups.com

> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

>

>

>

> Hi Ray,

>

>

>

> So does that mean you just press that button and it will do a flip no matter where it is?

>

>

>

> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> Sent: Mond ay, March 20, 2017 5:06 AM

> To: ap-gto@yahoogroups.com

> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

>

>

>

>

>

> Hi Tony and Peter,

>

> Starting with APCC v1.5.0.13 (Standard and Pro) a "Pier Flip" button was added in

> APCC's "Move Scope" group box.

>

> -Ray Gralak

> Author of APCC (Astro-Physics Command Center): www.astro-

> physics.com/index.htm?products/accessories/software/apcc/apcc

> Author of PEMPro: www.ccdware.com

> Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

> Author of PulseGuide: www.pulseguide.com www.pulseguide.c om>

> Author of Sigma: www.gralak.com/sigma

>

> > -----Original Message-----

> > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> > Sent: Monday, March 20, 2017 4:38 AM

> > To: ap-gto@yahoogroups.com

> > Subject: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> >

> >

> >

> > Hi Tony,

> >

> > There are several ways.

> >

> > Easiest is to re-send the slew command of the same object (i.e.Beehive Cluster) the

> > mount is currently pointing and if the mount (CP3/4 box) knows CW is higher than

> the

> > scope, it will automatically flip.

> >

> > Or even better, enable Meridian Flip in SGP and set how many minutes past the

> > Meridian before flipping.

> >

> > There is no dire ct "Flip Meridian" command.

> >

> > Peter (AKA Peter in Reno at CN)

> >

> >

> >

> > ---In ap-gto@yahoogroups.com,

> dvuolhhr6nx4a532a3phnju3zs6lzvlgxdl2wzaf@...>

> > wrote :

> >

> >

> >

> > HI,

> >

> >

> > I wanted to try and image the Beehive Cluster tonight (beginner). When I aimed the

> > scope at the Cluster the CWs ended up above horizontal - pretty much on the

> > Meridian. I would like the CWs on the opposite side (West side instead of East).

> How

> > do you do this manually? Can it be done in APC C or with the AP driver?

> >

> >

> > Thanks

> >

> >

> >

> >

> >

>

>







----------------------------

#56102 Mar 21, 2017

Hi Ray,  Thank You. This sounds like it was well thought out (for fools like me J).  Appreciate the help.    Cheers  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Tuesday, March 21, 2017 5:33 AMTo: ap-gto@yahoogroups.comSubject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO



----------------------------

#56103 Mar 21, 2017

Tony,

If you use SGPro, you can manually re-send the slew of same coordinates by clicking on "Slew Now" button in Target Settings window.

Peter

---In ap-gto@yahoogroups.com, tonybenjamin@...> wrote :

Hi Ray,  Thank You. This sounds like it was well thought out (for fools like me J).  Appreciate the help.    Cheers  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Tuesday, March 21, 2017 5:33 AMTo: ap-gto@yahoogroups.comSubject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO



----------------------------

#56111 Mar 21, 2017

Hi Peter,

> If you use SGPro, you can manually re-send the slew of same coordinates by clicking

> on "Slew Now" button in Target Settings window.



Does SGPro flip the scope from normal counterweight down to counterweight up without also having to change the meridian delay?



The one-click flip in APCC allows a way to do flips in either scope orientation (CW-up -> CW-down, and also CW-down -> CW-up)



-Ray Gralak

Author of APCC (Astro-Physics Command Center): www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc

Author of PEMPro: www.ccdware.com

Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

Author of PulseGuide: www.pulseguide.com

Author of Sigma: www.gralak.com/sigma



> -----Original Message-----

> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> Sent: Tuesday, March 21, 2017 8:58 AM

> To: ap-gto@yahoogroups.com

> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

>

>

>

> Tony,

>

> If you use SGPro, you can manually re-send the slew of same coordinates by clicking

> on "Slew Now" button in Target Settings window.

>

> Peter

>

>

>

> ---In ap-gto@yahoogroups.com, tonybenjamin@...> wrote :

>

>

>

> Hi Ray,

>

>

>

> Thank You. This sounds like it was well thought out (for fools like me J).

>

>

>

> Appreciate the help.

>

>

>

>

>

> Cheers

>

>

>

> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> Sent: Tuesday, March 21, 2017 5:33 AM

> To: ap-gto@yahoogroups.com

> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

>

>

>

>

>

> Hi Tony,

>

>

>

> .> So does that mean you just press that button and it will do a flip no matter

> where it is?

>

>

>

> APCC will in most cases pop up a window to confirm, but the general rules are in the

> help file, which I have copied and pasted here:

>

> Pier Flip Button: This button will initiate a pier flip under the following conditions:

>

> * If the scope has crossed the meridian, the button will flip it by simply issuing a GoTo

> slew command to the current coordinates.

>

> * If the scope has not yet reached the meridian, but its coordinates are within the

> "safe zone" of the meridian limits, a meridian offset will be set to allow the flip, followed

> by the GoTo slew command to the current coordinates.

>

> * If the scope has not yet reached the meridian, and it is NOT in a safe zone vis-a-vis

> the meridian limits, no flip slew will occur.

>

> -Ray Gralak

> Author of APCC (Astro-Physics Command Center): www.astro-

> physics.com/index.htm?products/accessories/software/apcc/apcc

> Author of PEMPro: www.ccdware.com

> Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

> Author of PulseGuide: www.pulseguide.com

> Author of Sigma: www.gralak.com/sigma

>

>

>

> .> -----Original Message-----

> .> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> Sent: Monday, March 20, 2017 11:27 AM

> .> To: ap-gto@yahoogroups.com

> .> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .>

> .>

> .>

> .> Hi Ray,

> .>

> .>

> .>

> .> So does that mean you just press that button and it will do a flip no matter

> where it is?

> .>

> .>

> .>

> .> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> Sent: Mond ay, March 20, 2017 5:06 AM

> .> To: ap-gt o@yahoogroups.com mailto:ap-gto@yahoogroups.com>

> .> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .>

> .>

> .>

> .>

> .>

> .> Hi Tony and Peter,

> .>

> .> Starting with APCC v1.5.0.13 (Standard and Pro) a "Pier Flip" button was

> added in

> .> APCC's "Move Scope" group box.

> .>

> .> -Ray Gralak

> .> Author of APCC (Astro-Physics Command Center): www.astro-

> .> physics.com/index.htm?products/accessories/software/apcc/apcc

> .> Author of PEMPro: www.ccdware.com

> .> Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

> .> Author of PulseGuide: www.pulseguide.com www.pulseguide.c

> om www.pulseguide.c%20om> >

> .> Author of Sigma: www.gralak.com/sigma

> .>

> .> > -----Original Message-----

> .> > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > Sent: Monday, March 20, 2017 4:38 AM

> .> > To: ap-gto@yahoogroups.com

> .> > Subject: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> >

> .> >

> .> >

> .> > Hi Tony,

> .> >

> .> > There are several ways.

> .> >

> .> > Easiest is to re-send the slew command of the same object (i.e.Beehive

> Cluster) the

> .> > mount is currently pointing and if the mount (CP3 /4 box) knows CW is

> higher than

> .> the

> .> > scope, it will automatically flip.

> .> >

> .> > Or even better, enable Meridian Flip in SGP and set how many minutes

> past the

> .> > Meridian before flipping.

> .> >

> .> > There is no dire ct "Flip Meridian" command.

> .> >

> .> > Peter (AKA Peter in Reno at CN)

> .> >

> .> >

> .> >

> .> > ---In ap-gto@yahoogroups.com,

> .> dvuolhhr6nx4a532a3phnju3zs6lzvlgxdl2wzaf@...>

> .> > wrote :

> .> >

> .> >

> .> >

> .> > HI,

> .> >

> .> >

> .> > I wanted to try and image the Beehive Cluster tonight (beginner). When I

> aimed the

> .> > scope at the Cluster the CWs ended up above horizontal - pretty much on

> the

> .> > Meridia n. I would like the CWs on the opposite side (West side instead of

> East).

> .> How

> .> > do you do this manually? Can it be done in APC C or with the AP driver?

> .> >

> .> >

> .> > Thanks

> .> >

> .> >

> .> >

> .> >

> .> >

> .>

> .>

>

>







----------------------------

#56112 Mar 21, 2017

Hi Ray,

SGPro has no idea what's a Meridian Delay is, so it won't put up a confirmation window like APCC does. So pressing the "Slew Now" button is simply sending a slew to the mount as if it was sent by the Hand Controller..

I hope I understood your question.

Peter

---In ap-gto@yahoogroups.com, groups3@...> wrote :

Hi Peter,

> If you use SGPro, you can manually re-send the slew of same coordinates by clicking

> on "Slew Now" button in Target Settings window.



Does SGPro flip the scope from normal counterweight down to counterweight up without also having to change the meridian delay?



The one-click flip in APCC allows a way to do flips in either scope orientation (CW-up -> CW-down, and also CW-down -> CW-up)



-Ray Gralak

Author of APCC (Astro-Physics Command Center): www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc

Author of PEMPro: www.ccdware.com

Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

Author of PulseGuide: www.pulseguide.com

Author of Sigma: www.gralak.com/sigma



> -----Original Message-----

> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> Sent: Tuesday, March 21, 2017 8:58 AM

> To: ap-gto@yahoogroups.com

> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

>

>

>

> Tony,

>

> If you use SGPro, you can manually re-send the slew of same coordinates by clicking

> on "Slew Now" button in Target Settings window.

>

> Peter

>

>

>

> ---In ap-gto@yahoogroups.com, tonybenjamin@...> wrote :

>

>

>

> Hi Ray,

>

>

>

> Thank You. This sounds like it was well thought out (for fools like me J).

>

>

>

> Appreciate the help.

>

>

>

>

>

> Cheers

>

>

>

> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> Sent: Tuesday, March 21, 2017 5:33 AM

> To: ap-gto@yahoogroups.com

> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

>

>

>

>

>

> Hi Tony,

>

>

>

> .> So does that mean you just press that button and it will do a flip no matter

> where it is?

>

>

>

> APCC will in most cases pop up a window to confirm, but the general rules are in the

> help file, which I have copied and pasted here:

>

> Pier Flip Button: This button will initiate a pier flip under the following conditions:

>

> * If the scope has crossed the meridian, the button will flip it by simply issuing a GoTo

> slew command to the current coordinates.

>

> * If the scope has not yet reached the meridian, but its coordinates are within the

> "safe zone" of the meridian limits, a meridian offset will be set to allow the flip, followed

> by the GoTo slew command to the current coordinates.

>

> * If the scope has not yet reached the meridian, and it is NOT in a safe zone vis-a-vis

> the meridian limits, no flip slew will occur.

>

> -Ray Gralak

> Author of APCC (Astro-Physics Command Center): www.astro-

> physics.com/index.htm?products/accessories/software/apcc/apcc

> Author of PEMPro: www.ccdware.com

> Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

> Author of PulseGuide: www.pulseguide.com

> Author of Sigma: www.gralak.com/sigma

>

>

>

> .> -----Original Message-----

> .> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> Sent: Monday, March 20, 2017 11:27 AM

> .> To: ap-gto@yahoogroups.com

> .> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .>

> .>

> .>

> .> Hi Ray,

> .>

> .>

> .>

> .> So does that mean you just press that button and it will do a flip no matter

> where it is?

> .>

> .>

> .>

> .> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> Sent: Mond ay, March 20, 2017 5:06 AM

> .> To: ap-gt o@yahoogroups.com mailto:ap-gto@yahoogroups.com>

> .> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .>

> .>

> .>

> .>

> .>

> .> Hi Tony and Peter,

> .>

> .> Starting with APCC v1.5.0.13 (Standard and Pro) a "Pier Flip" button was

> added in

> .> APCC's "Move Scope" group box.

> .>

> .> -Ray Gralak

> .> Author of APCC (Astro-Physics Command Center): www.astro-

> .> physics.com/index.htm?products/accessories/software/apcc/apcc

> .> Author of PEMPro: www.ccdware.com

> .> Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

> .> Author of PulseGuide: www.pulseguide.com www.pulseguide.c

> om www.pulseguide.c%20om> >

> .> Author of Sigma: www.gralak.com/sigma

> .>

> .> > -----Original Message-----

> .> > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > Sent: Monday, March 20, 2017 4:38 AM

> .> > To: ap-gto@yahoogroups.com

> .> > Subject: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> >

> .> >

> .> >

> .> > Hi Tony,

> .> >

> .> > There are several ways.

> .> >

> .> > Easiest is to re-send the slew command of the same object (i.e.Beehive

> Cluster) the

> .> > mount is currently pointing and if the mount (CP3 /4 box) knows CW is

> higher than

> .> the

> .> > scope, it will automatically flip.

> .> >

> .> > Or even better, enable Meridian Flip in SGP and set how many minutes

> past the

> .> > Meridian before flipping.

> .> >

> .> > There is no dire ct "Flip Meridian" command.

> .> >

> .> > Peter (AKA Peter in Reno at CN)

> .> >

> .> >

> .> >

> .> > ---In ap-gto@yahoogroups.com,

> .> dvuolhhr6nx4a532a3phnju3zs6lzvlgxdl2wzaf@...>

> .> > wrote :

> .> >

> .> >

> .> >

> .> > HI,

> .> >

> .> >

> .> > I wanted to try and image the Beehive Cluster tonight (beginner). When I

> aimed the

> .> > scope at the Cluster the CWs ended up above horizontal - pretty much on

> the

> .> > Meridia n. I would like the CWs on the opposite side (West side instead of

> East).

> .> How

> .> > do you do this manually? Can it be done in APC C or with the AP driver?

> .> >

> .> >

> .> > Thanks

> .> >

> .> >

> .> >

> .> >

> .> >

> .>

> .>

>

>







----------------------------

#56114 Mar 21, 2017

Hi Peter,



My point was that I don.t think that SGPro's Slew Now button will always cause a pier flip like what APCC's pier flip button will do. For example, if you wanted to do a pier flip from a counterweight down position to a counterweight up position, issuing a slew with SGPro would not cause a pier flip without also setting the meridian delay appropriately. I hope I am making clear the difference?



-Ray Gralak

Author of APCC (Astro-Physics Command Center): www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc

Author of PEMPro: www.ccdware.com

Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

Author of PulseGuide: www.pulseguide.com

Author of Sigma: www.gralak.com/sigma



> -----Original Message-----

> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> Sent: Tuesday, March 21, 2017 8:25 PM

> To: ap-gto@yahoogroups.com

> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

>

>

>

> Hi Ray,

>

> SGPro has no idea what's a Meridian Delay is, so it won't put up a confirmation

> window like APCC does. So pressing the "Slew Now" button is simply sending a slew

> to the mount as if it was sent by the Hand Controller..

>

> I hope I understood your question.

>

> Peter

>

>

>

> ---In ap-gto@yahoogroups.com, groups3@...> wrote :

>

>

> Hi Peter,

>

>

>

> .> If you use SGPro, you can manually re-send the slew of same coordinates

> by clicking

> .> on "Slew Now" button in Target Settings window.

>

>

>

> Does SGPro flip the scope from normal counterweight down to counterweight up

> without also having to change the meridian delay?

>

> The one-click flip in APCC allows a way to do flips in either scope orientation (CW-up

> -> CW-down, and also CW-down -> CW-up)

>

> -Ray Gralak

> Author of APCC (Astro-Physics Command Center): www.astro-

> physics.com/index.htm?products/accessories/software/apcc/apcc

> Author of PEMPro: www.ccdware.com

> Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

> Author of PulseGuide: www.pulseguide.com

> Author of Sigma: www.gralak.com/sigma

>

>

>

>

> .> -----Original Message-----

> .> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> Sent: Tuesday, March 21, 2017 8:58 AM

> .> To: ap-gto@yahoogroups.com

> .> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .>

> .>

> .>

> .> Tony,

> .>

> .> If you use SGPro, you can manually re-send the slew of same coordinates

> by clicking

> .> on "Slew Now" button in Target Settings window.

> .>

> .> Peter

> .>

> .>

> .>

> .> ---In ap-gto@yahoogroups.com, tonybenjamin@...> wrote :

> .>

> .>

> .>

> .> Hi Ray,

> .>

> .>

> .>

> .> Thank You. This sounds like it was well thought out (for fools like me J).

> .>

> .>

> .>

> .> Appreciate the help.

> .>

> .>

> .>

> .>

> .>

> .> Cheers

> .>

> .>

> .>

> .> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> Sent: Tuesday, March 21, 2017 5:33 AM

> .> To: ap-gto@yahoogroups.com

> .> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .>

> .>

> .>

> .>

> .>

> .> Hi Tony,

> .>

> .>

> .>

> .> > So does that mean you just press that button and it will do a flip no matter

> .> where it is?

> .>

> .>

> .>

> .> APCC will in most cases pop up a window to confirm, but the general rules

> are in the

> .> help file, which I have copied and pasted here:

> .>

> .> Pier Flip Button: This button will initiate a pier flip under the following

> conditions:

> .>

> .> * If the scope has crossed the meridian, the button will flip it by simply

> issuing a GoTo

> .> slew command to the current coordinates.

> .>

> .> * If the scope has not yet reached the meridian, but its coordinates are within

> the

> .> "safe zone" of the meridian limits, a meridian offset will be set to allow the flip,

> followed

> .> by the GoTo slew command to the current coordinates.

> .>

> .> * If the scope has not yet reached the meridian, and it is NOT in a safe zone

> vis-a-vis

> .> the meridian limits, no flip slew will occur.

> .>

> .> -Ray Gralak

> .> Author of APCC (Astro-Physics Command Center): www.astro-

> .> physics.com/index.htm?products/accessories/software/apcc/apcc

> .> Author of PEMPro: www.ccdware.com

> .> Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

> .> Author of PulseGuide: www.pulseguide.com

> .> Author of Sigma: www.gralak.com/sigma

> .>

> .>

> .>

> .> > -----Original Message-----

> .> > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > Sent: Monday, March 20, 2017 11:27 AM

> .> > To: ap-gto@yahoogroups.com

> .> > Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> >

> .> >

> .> >

> .> > Hi Ray,

> .> >

> .> >

> .> >

> .> > So does that mean you just press that button and it will do a flip no matter

> .> where it is?

> .> >

> .> >

> .> >

> .> > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > Sent: Mond ay, March 20, 2017 5:06 AM

> .> > To: ap-gt o@yahoogroups.com mailto:ap-gto@yahoogroups.com>

> .> > Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> >

> .> >

> .> >

> .> >

> .> >

> .> > Hi Tony and Peter,

> .> >

> .> > Starting with APCC v1.5.0.13 (Standard and Pro) a "Pier Flip" button was

> .> added in

> .> > APCC's "Move Scope" group box.

> .> >

> .> > -Ray Gralak

> .> > Author of APCC (Astro-Physics Command Center): www.astro-

> .> > physics.com/index.htm?products/accessories/software/apcc/apcc

> .> > Author of PEMPro: www.ccdware.com

> .> > Author of Astro-Physics V2 ASCOM Driver:

> www.gralak.com/apdriver

> .> > Author of PulseGuide: www.pulseguide.com

> www.pulseguide.c

> .> om www.pulseguide.c%20om> >

> .> > Author of Sigma: www.gralak.com/sigma

> .> >

> .> > > -----Original Message-----

> .> > > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > > Sent: Monday, March 20, 2017 4:38 AM

> .> > > To: ap-gto@yahoogroups.com

> .> > > Subject: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> > >

> .> > >

> .> > >

> .> > > Hi Tony,

> .> > >

> .> > > There are several ways.

> .> > >

> .> > > Easiest is to re-send the slew command of the same object (i.e.Beehive

> .> Cluster) the

> .> > > mount is currently pointing and if the mount (CP3 /4 box) knows CW is

> .> higher than

> .> > the

> .> > > scope, it will automatically flip.

> .> > >

> .> > > Or even better, enable Meridian Flip in SGP and set how many minutes

> .> past the

> .> > > Meridian before flipping.

> .> > >

> .> > > There is no dire ct "Flip Meridian" command.

> .> > >

> .> > > Peter (AKA Peter in Reno at CN)

> .> > >

> .> > >

> .> > >

> .> > > ---In ap-gto@yahoogroups.com,

> .> > dvuolhhr6nx4a532a3phnju3zs6lzvlgxdl2wzaf@...>

> .> > > wrote :

> .> > >

> .> > >

> .> > >

> .> > > HI,

> .> > >

> .> > >

> .> > > I wanted to try and image the Beehive Cluster tonight (beginner). When I

> .> aimed the

> .> > > scope at the Cluster the CWs ended up above horizontal - pretty much

> on

> .> the

> .> > > Meridia n. I would like the CWs on the opposite side (West side instead

> of

> .> East).

> .> > How

> .> > > do you do this manually? Can it be done in APC C or with the AP driver?

> .> > >

> .> > >

> .> > > Thanks

> .> > >

> .> > >

> .> > >

> .> > >

> .> > >

> .> >

> .> >

> .>

> .>

>

>







----------------------------

#56115 Mar 22, 2017

Hi Ray,

I understand that APCC's pier flip button is a smart slew command containing conditions whether to perform a Meridian Flip or not. I agree with you that SGPro's Slew Now does not do that, it simply sends a slew command to the mount without conditions and it's up to the mount to perform the Meridian Flip depending on the CW's current position and Meridian Delay settings.

In your example about the mount going from CW down to CW up with appropriate Meridian Delay settings, I believe the mount will flip without conditions with SGPro's Slew Now button. It should be no different than slew command sent from planetarium or 3rd party software.

FYI, I don't use Meridian Delay for imaging thanks to SGPro ease of use but I understand how Meridian Delay works. I used to use Meridian Delay with finderscope and Hand Controller for polar alignment. Now I use PoleMaster for polar alignment and use RAPAS from then on.

Peter

---In ap-gto@yahoogroups.com, groups3@...> wrote :

Hi Peter,



My point was that I don.t think that SGPro's Slew Now button will always cause a pier flip like what APCC's pier flip button will do. For example, if you wanted to do a pier flip from a counterweight down position to a counterweight up position, issuing a slew with SGPro would not cause a pier flip without also setting the meridian delay appropriately. I hope I am making clear the difference?



-Ray Gralak

Author of APCC (Astro-Physics Command Center): www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc

Author of PEMPro: www.ccdware.com

Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

Author of PulseGuide: www.pulseguide.com

Author of Sigma: www.gralak.com/sigma



> -----Original Message-----

> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> Sent: Tuesday, March 21, 2017 8:25 PM

> To: ap-gto@yahoogroups.com

> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

>

>

>

> Hi Ray,

>

> SGPro has no idea what's a Meridian Delay is, so it won't put up a confirmation

> window like APCC does. So pressing the "Slew Now" button is simply sending a slew

> to the mount as if it was sent by the Hand Controller..

>

> I hope I understood your question.

>

> Peter

>

>

>

> ---In ap-gto@yahoogroups.com, groups3@...> wrote :

>

>

> Hi Peter,

>

>

>

> .> If you use SGPro, you can manually re-send the slew of same coordinates

> by clicking

> .> on "Slew Now" button in Target Settings window.

>

>

>

> Does SGPro flip the scope from normal counterweight down to counterweight up

> without also having to change the meridian delay?

>

> The one-click flip in APCC allows a way to do flips in either scope orientation (CW-up

> -> CW-down, and also CW-down -> CW-up)

>

> -Ray Gralak

> Author of APCC (Astro-Physics Command Center): www.astro-

> physics.com/index.htm?products/accessories/software/apcc/apcc

> Author of PEMPro: www.ccdware.com

> Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

> Author of PulseGuide: www.pulseguide.com

> Author of Sigma: www.gralak.com/sigma

>

>

>

>

> .> -----Original Message-----

> .> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> Sent: Tuesday, March 21, 2017 8:58 AM

> .> To: ap-gto@yahoogroups.com

> .> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .>

> .>

> .>

> .> Tony,

> .>

> .> If you use SGPro, you can manually re-send the slew of same coordinates

> by clicking

> .> on "Slew Now" button in Target Settings window.

> .>

> .> Peter

> .>

> .>

> .>

> .> ---In ap-gto@yahoogroups.com, tonybenjamin@...> wrote :

> .>

> .>

> .>

> .> Hi Ray,

> .>

> .>

> .>

> .> Thank You. This sounds like it was well thought out (for fools like me J).

> .>

> .>

> .>

> .> Appreciate the help.

> .>

> .>

> .>

> .>

> .>

> .> Cheers

> .>

> .>

> .>

> .> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> Sent: Tuesday, March 21, 2017 5:33 AM

> .> To: ap-gto@yahoogroups.com

> .> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .>

> .>

> .>

> .>

> .>

> .> Hi Tony,

> .>

> .>

> .>

> .> > So does that mean you just press that button and it will do a flip no matter

> .> where it is?

> .>

> .>

> .>

> .> APCC will in most cases pop up a window to confirm, but the general rules

> are in the

> .> help file, which I have copied and pasted here:

> .>

> .> Pier Flip Button: This button will initiate a pier flip under the following

> conditions:

> .>

> .> * If the scope has crossed the meridian, the button will flip it by simply

> issuing a GoTo

> .> slew command to the current coordinates.

> .>

> .> * If the scope has not yet reached the meridian, but its coordinates are within

> the

> .> "safe zone" of the meridian limits, a meridian offset will be set to allow the flip,

> followed

> .> by the GoTo slew command to the current coordinates.

> .>

> .> * If the scope has not yet reached the meridian, and it is NOT in a safe zone

> vis-a-vis

> .> the meridian limits, no flip slew will occur.

> .>

> .> -Ray Gralak

> .> Author of APCC (Astro-Physics Command Center): www.astro-

> .> physics.com/index.htm?products/accessories/software/apcc/apcc

> .> Author of PEMPro: www.ccdware.com

> .> Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

> .> Author of PulseGuide: www.pulseguide.com

> .> Author of Sigma: www.gralak.com/sigma

> .>

> .>

> .>

> .> > -----Original Message-----

> .> > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > Sent: Monday, March 20, 2017 11:27 AM

> .> > To: ap-gto@yahoogroups.com

> .> > Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> >

> .> >

> .> >

> .> > Hi Ray,

> .> >

> .> >

> .> >

> .> > So does that mean you just press that button and it will do a flip no matter

> .> where it is?

> .> >

> .> >

> .> >

> .> > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > Sent: Mond ay, March 20, 2017 5:06 AM

> .> > To: ap-gt o@yahoogroups.com mailto:ap-gto@yahoogroups.com>

> .> > Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> >

> .> >

> .> >

> .> >

> .> >

> .> > Hi Tony and Peter,

> .> >

> .> > Starting with APCC v1.5.0.13 (Standard and Pro) a "Pier Flip" button was

> .> added in

> .> > APCC's "Move Scope" group box.

> .> >

> .> > -Ray Gralak

> .> > Author of APCC (Astro-Physics Command Center): www.astro-

> .> > physics.com/index.htm?products/accessories/software/apcc/apcc

> .> > Author of PEMPro: www.ccdware.com

> .> > Author of Astro-Physics V2 ASCOM Driver:

> www.gralak.com/apdriver

> .> > Author of PulseGuide: www.pulseguide.com

> www.pulseguide.c

> .> om www.pulseguide.c%20om> >

> .> > Author of Sigma: www.gralak.com/sigma

> .> >

> .> > > -----Original Message-----

> .> > > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > > Sent: Monday, March 20, 2017 4:38 AM

> .> > > To: ap-gto@yahoogroups.com

> .> > > Subject: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> > >

> .> > >

> .> > >

> .> > > Hi Tony,

> .> > >

> .> > > There are several ways.

> .> > >

> .> > > Easiest is to re-send the slew command of the same object (i.e.Beehive

> .> Cluster) the

> .> > > mount is currently pointing and if the mount (CP3 /4 box) knows CW is

> .> higher than

> .> > the

> .> > > scope, it will automatically flip.

> .> > >

> .> > > Or even better, enable Meridian Flip in SGP and set how many minutes

> .> past the

> .> > > Meridian before flipping.

> .> > >

> .> > > There is no dire ct "Flip Meridian" command.

> .> > >

> .> > > Peter (AKA Peter in Reno at CN)

> .> > >

> .> > >

> .> > >

> .> > > ---In ap-gto@yahoogroups.com,

> .> > dvuolhhr6nx4a532a3phnju3zs6lzvlgxdl2wzaf@...>

> .> > > wrote :

> .> > >

> .> > >

> .> > >

> .> > > HI,

> .> > >

> .> > >

> .> > > I wanted to try and image the Beehive Cluster tonight (beginner). When I

> .> aimed the

> .> > > scope at the Cluster the CWs ended up above horizontal - pretty much

> on

> .> the

> .> > > Meridia n. I would like the CWs on the opposite side (West side instead

> of

> .> East).

> .> > How

> .> > > do you do this manually? Can it be done in APC C or with the AP driver?

> .> > >

> .> > >

> .> > > Thanks

> .> > >

> .> > >

> .> > >

> .> > >

> .> > >

> .> >

> .> >

> .>

> .>

>

>







----------------------------

#56116 Mar 22, 2017

Hi Peter,

> In your example about the mount going from CW down to CW up with appropriate

> Meridian Delay settings, I believe the mount will flip without conditions with SGPro's

> Slew Now button. It should be no different than slew command sent from planetarium

> or 3rd party software.



But, with APCC's pier flip feature you don't need to worry about setting the meridian delay. APCC's flip feature is not just a smart slew. After flipping the scope with APCC's pier flip button, clicking the button again will again cause a pier flip. Never do you need to set or worry about setting a meridian delay to do this. It is all done in the background.



So, using APCC's pier flip button X number if times in a row will flip the scope X times. Clicking any planetarium software's button to slew to the same RA/Dec will flip the scope at most once. Additional clicks to slew to the same coordinates will not flip the scope.



BTW, I'm only continuing to make this point because the topic is "how to *force* a meridian flip". I do not think you can always *force* a flip by resending the current RA/Dec coordinates, which is what the hand controller, SGPro, or any planetarium program would do.



Best regards,



-Ray Gralak

Author of APCC (Astro-Physics Command Center): www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc

Author of PEMPro: www.ccdware.com

Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

Author of PulseGuide: www.pulseguide.com

Author of Sigma: www.gralak.com/sigma



> -----Original Message-----

> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> Sent: Wednesday, March 22, 2017 3:07 AM

> To: ap-gto@yahoogroups.com

> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

>

>

>

> Hi Ray,

>

> I understand that APCC's pier flip button is a smart slew command containing

> conditions whether to perform a Meridian Flip or not. I agree with you that SGPro's

> Slew Now does not do that, it simply sends a slew command to the mount without

> conditions and it's up to the mount to perform the Meridian Flip depending on the

> CW's current position and Meridian Delay settings.

>

> In your example about the mount going from CW down to CW up with appropriate

> Meridian Delay settings, I believe the mount will flip without conditions with SGPro's

> Slew Now button. It should be no different than slew command sent from planetarium

> or 3rd party software.

>

> FYI, I don't use Meridian Delay for imaging thanks to SGPro ease of use but I

> understand how Meridian Delay works. I used to use Meridian Delay with finderscope

> and Hand Controller for polar alignment. Now I use PoleMaster for polar alignment

> and use RAPAS from then on.

>

> Peter

>

>

>

> ---In ap-gto@yahoogroups.com, groups3@...> wrote :

>

>

> Hi Peter,

>

> My point was that I don.t think that SGPro's Slew Now button will always cause a pier

> flip like what APCC's pier flip button will do. For example, if you wanted to do a pier flip

> from a counterweight down position to a counterweight up position, issuing a slew

> with SGPro would not cause a pier flip without also setting the meridian delay

> appropriately. I hope I am making clear the difference?

>

> -Ray Gralak

> Author of APCC (Astro-Physics Command Center): www.astro-

> physics.com/index.htm?products/accessories/software/apcc/apcc

> Author of PEMPro: www.ccdware.com

> Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

> Author of PulseGuide: www.pulseguide.com

> Author of Sigma: www.gralak.com/sigma

>

>

>

>

> .> -----Original Message-----

> .> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> Sent: Tuesday, March 21, 2017 8:25 PM

> .> To: ap-gto@yahoogroups.com

> .> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .>

> .>

> .>

> .> Hi Ray,

> .>

> .> SGPro has no idea what's a Meridian Delay is, so it won't put up a

> confirmation

> .> window like APCC does. So pressing the "Slew Now" button is simply

> sending a slew

> .> to the mount as if it was sent by the Hand Controller..

> .>

> .> I hope I understood your question.

> .>

> .> Peter

> .>

> .>

> .>

> .> ---In ap-gto@yahoogroups.com, groups3@...> wrote :

> .>

> .>

> .> Hi Peter,

> .>

> .>

> .>

> .> > If you use SGPro, you can manually re-send the slew of same coordinates

> .> by clicking

> .> > on "Slew Now" button in Target Settings window.

> .>

> .>

> .>

> .> Does SGPro flip the scope from normal counterweight down to

> counterweight up

> .> without also having to change the meridian delay?

> .>

> .> The one-click flip in APCC allows a way to do flips in either scope orientation

> (CW-up

> .> -> CW-down, and also CW-down -> CW-up)

> .>

> .> -Ray Gralak

> .> Author of APCC (Astro-Physics Command Center): www.astro-

> .> physics.com/index.htm?products/accessories/software/apcc/apcc

> .> Author of PEMPro: www.ccdware.com

> .> Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

> .> Author of PulseGuide: www.pulseguide.com

> .> Author of Sigma: www.gralak.com/sigma

> .>

> .>

> .>

> .>

> .> > -----Original Message-----

> .> > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > Sent: Tuesday, March 21, 2017 8:58 AM

> .> > To: ap-gto@yahoogroups.com

> .> > Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> >

> .> >

> .> >

> .> > Tony,

> .> >

> .> > If you use SGPro, you can manually re-send the slew of same coordinates

> .> by clicking

> .> > on "Slew Now" button in Target Settings window.

> .> >

> .> > Peter

> .> >

> .> >

> .> >

> .> > ---In ap-gto@yahoogroups.com, tonybenjamin@...> wrote :

> .> >

> .> >

> .> >

> .> > Hi Ray,

> .> >

> .> >

> .> >

> .> > Thank You. This sounds like it was well thought out (for fools like me J).

> .> >

> .> >

> .> >

> .> > Appreciate the help.

> .> >

> .> >

> .> >

> .> >

> .> >

> .> > Cheers

> .> >

> .> >

> .> >

> .> > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > Sent: Tuesday, March 21, 2017 5:33 AM

> .> > To: ap-gto@yahoogroups.com

> .> > Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> >

> .> >

> .> >

> .> >

> .> >

> .> > Hi Tony,

> .> >

> .> >

> .> >

> .> > > So does that mean you just press that button and it will do a flip no

> matter

> .> > where it is?

> .> >

> .> >

> .> >

> .> > APCC will in most cases pop up a window to confirm, but the general rules

> .> are in the

> .> > help file, which I have copied and pasted here:

> .> >

> .> > Pier Flip Button: This button will initiate a pier flip under the following

> .> conditions:

> .> >

> .> > * If the scope has crossed the meridian, the button will flip it by simply

> .> issuing a GoTo

> .> > slew command to the current coordinates.

> .> >

> .> > * If the scope has not yet reached the meridian, but its coordinates are

> within

> .> the

> .> > "safe zone" of the meridian limits, a meridian offset will be set to allow the

> flip,

> .> followed

> .> > by the GoTo slew command to the current coordinates.

> .> >

> .> > * If the scope has not yet reached the meridian, and it is NOT in a safe

> zone

> .> vis-a-vis

> .> > the meridian limits, no flip slew will occur.

> .> >

> .> > -Ray Gralak

> .> > Author of APCC (Astro-Physics Command Center): www.astro-

> .> > physics.com/index.htm?products/accessories/software/apcc/apcc

> .> > Author of PEMPro: www.ccdware.com

> .> > Author of Astro-Physics V2 ASCOM Driver:

> www.gralak.com/apdriver

> .> > Author of PulseGuide: www.pulseguide.com

> .> > Author of Sigma: www.gralak.com/sigma

> .> >

> .> >

> .> >

> .> > > -----Original Message-----

> .> > > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > > Sent: Monday, March 20, 2017 11:27 AM

> .> > > To: ap-gto@yahoogroups.com

> .> > > Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> > >

> .> > >

> .> > >

> .> > > Hi Ray,

> .> > >

> .> > >

> .> > >

> .> > > So does that mean you just press that button and it will do a flip no

> matter

> .> > where it is?

> .> > >

> .> > >

> .> > >

> .> > > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > > Sent: Mond ay, March 20, 2017 5:06 AM

> .> > > To: ap-gt o@yahoogroups.com mailto:ap-gto@yahoogroups.com>

> .> > > Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> > >

> .> > >

> .> > >

> .> > >

> .> > >

> .> > > Hi Tony and Peter,

> .> > >

> .> > > Starting with APCC v1.5.0.13 (Standard and Pro) a "Pier Flip" button

> was

> .> > added in

> .> > > APCC's "Move Scope" group box.

> .> > >

> .> > > -Ray Gralak

> .> > > Author of APCC (Astro-Physics Command Center): www.astro-

> .> > > physics.com/index.htm?products/accessories/software/apcc/apcc

> .> > > Author of PEMPro: www.ccdware.com

> .> > > Author of Astro-Physics V2 ASCOM Driver:

> .> www.gralak.com/apdriver

> .> > > Author of PulseGuide: www.pulseguide.com

> .> www.pulseguide.c

> .> > om www.pulseguide.c%20om> >

> .> > > Author of Sigma: www.gralak.com/sigma

> .> > >

> .> > > > -----Original Message-----

> .> > > > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > > > Sent: Monday, March 20, 2017 4:38 AM

> .> > > > To: ap-gto@yahoogroups.com

> .> > > > Subject: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> > > >

> .> > > >

> .> > > >

> .> > > > Hi Tony,

> .> > > >

> .> > > > There are several ways.

> .> > > >

> .> > > > Easiest is to re-send the slew command of the same object

> (i.e.Beehive

> .> > Cluster) the

> .> > > > mount is currently pointing and if the mount (CP3 /4 box) knows CW is

> .> > higher than

> .> > > the

> .> > > > scope, it will automatically flip.

> .> > > >

> .> > > > Or even better, enable Meridian Flip in SGP and set how many

> minutes

> .> > past the

> .> > > > Meridian before flipping.

> .> > > >

> .> > > > There is no dire ct "Flip Meridian" command.

> .> > > >

> .> > > > Peter (AKA Peter in Reno at CN)

> .> > > >

> .> > > >

> .> > > >

> .> > > > ---In ap-gto@yahoogroups.com,

> .> > > dvuolhhr6nx4a532a3phnju3zs6lzvlgxdl2wzaf@...>

> .> > > > wrote :

> .> > > >

> .> > > >

> .> > > >

> .> > > > HI,

> .> > > >

> .> > > >

> .> > > > I wanted to try and image the Beehive Cluster tonight (beginner).

> When I

> .> > aimed the

> .> > > > scope at the Cluster the CWs ended up above horizontal - pretty much

> .> on

> .> > the

> .> > > > Meridia n. I would like the CWs on the opposite side (West side

> instead

> .> of

> .> > East).

> .> > > How

> .> > > > do you do this manually? Can it be done in APC C or with the AP

> driver?

> .> > > >

> .> > > >

> .> > > > Thanks

> .> > > >

> .> > > >

> .> > > >

> .> > > >

> .> > > >

> .> > >

> .> > >

> .> >

> .> >

> .>

> .>

>

>







----------------------------

#56117 Mar 22, 2017

Gotcha.

Sounds like APCC is a very cool program but my setup is always portable and so far I do not have the need for it. I always image one object per night and I know my area and sky very well to know whether the object I am imaging needs Meridian Flipping or not. In my case, I do not need Meridian Flipping for objects located at the Southern sky (relative to Horizon) up to Zenith. North of Zenith, I need to use Meridian Flip.

Peter

---In ap-gto@yahoogroups.com, groups3@...> wrote :

Hi Peter,

> In your example about the mount going from CW down to CW up with appropriate

> Meridian Delay settings, I believe the mount will flip without conditions with SGPro's

> Slew Now button. It should be no different than slew command sent from planetarium

> or 3rd party software.



But, with APCC's pier flip feature you don't need to worry about setting the meridian delay. APCC's flip feature is not just a smart slew. After flipping the scope with APCC's pier flip button, clicking the button again will again cause a pier flip. Never do you need to set or worry about setting a meridian delay to do this. It is all done in the background.



So, using APCC's pier flip button X number if times in a row will flip the scope X times. Clicking any planetarium software's button to slew to the same RA/Dec will flip the scope at most once. Additional clicks to slew to the same coordinates will not flip the scope.



BTW, I'm only continuing to make this point because the topic is "how to *force* a meridian flip". I do not think you can always *force* a flip by resending the current RA/Dec coordinates, which is what the hand controller, SGPro, or any planetarium program would do.



Best regards,



-Ray Gralak

Author of APCC (Astro-Physics Command Center): www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc

Author of PEMPro: www.ccdware.com

Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

Author of PulseGuide: www.pulseguide.com

Author of Sigma: www.gralak.com/sigma



> -----Original Message-----

> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> Sent: Wednesday, March 22, 2017 3:07 AM

> To: ap-gto@yahoogroups.com

> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

>

>

>

> Hi Ray,

>

> I understand that APCC's pier flip button is a smart slew command containing

> conditions whether to perform a Meridian Flip or not. I agree with you that SGPro's

> Slew Now does not do that, it simply sends a slew command to the mount without

> conditions and it's up to the mount to perform the Meridian Flip depending on the

> CW's current position and Meridian Delay settings.

>

> In your example about the mount going from CW down to CW up with appropriate

> Meridian Delay settings, I believe the mount will flip without conditions with SGPro's

> Slew Now button. It should be no different than slew command sent from planetarium

> or 3rd party software.

>

> FYI, I don't use Meridian Delay for imaging thanks to SGPro ease of use but I

> understand how Meridian Delay works. I used to use Meridian Delay with finderscope

> and Hand Controller for polar alignment. Now I use PoleMaster for polar alignment

> and use RAPAS from then on.

>

> Peter

>

>

>

> ---In ap-gto@yahoogroups.com, groups3@...> wrote :

>

>

> Hi Peter,

>

> My point was that I don.t think that SGPro's Slew Now button will always cause a pier

> flip like what APCC's pier flip button will do. For example, if you wanted to do a pier flip

> from a counterweight down position to a counterweight up position, issuing a slew

> with SGPro would not cause a pier flip without also setting the meridian delay

> appropriately. I hope I am making clear the difference?

>

> -Ray Gralak

> Author of APCC (Astro-Physics Command Center): www.astro-

> physics.com/index.htm?products/accessories/software/apcc/apcc

> Author of PEMPro: www.ccdware.com

> Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

> Author of PulseGuide: www.pulseguide.com

> Author of Sigma: www.gralak.com/sigma

>

>

>

>

> .> -----Original Message-----

> .> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> Sent: Tuesday, March 21, 2017 8:25 PM

> .> To: ap-gto@yahoogroups.com

> .> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .>

> .>

> .>

> .> Hi Ray,

> .>

> .> SGPro has no idea what's a Meridian Delay is, so it won't put up a

> confirmation

> .> window like APCC does. So pressing the "Slew Now" button is simply

> sending a slew

> .> to the mount as if it was sent by the Hand Controller..

> .>

> .> I hope I understood your question.

> .>

> .> Peter

> .>

> .>

> .>

> .> ---In ap-gto@yahoogroups.com, groups3@...> wrote :

> .>

> .>

> .> Hi Peter,

> .>

> .>

> .>

> .> > If you use SGPro, you can manually re-send the slew of same coordinates

> .> by clicking

> .> > on "Slew Now" button in Target Settings window.

> .>

> .>

> .>

> .> Does SGPro flip the scope from normal counterweight down to

> counterweight up

> .> without also having to change the meridian delay?

> .>

> .> The one-click flip in APCC allows a way to do flips in either scope orientation

> (CW-up

> .> -> CW-down, and also CW-down -> CW-up)

> .>

> .> -Ray Gralak

> .> Author of APCC (Astro-Physics Command Center): www.astro-

> .> physics.com/index.htm?products/accessories/software/apcc/apcc

> .> Author of PEMPro: www.ccdware.com

> .> Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

> .> Author of PulseGuide: www.pulseguide.com

> .> Author of Sigma: www.gralak.com/sigma

> .>

> .>

> .>

> .>

> .> > -----Original Message-----

> .> > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > Sent: Tuesday, March 21, 2017 8:58 AM

> .> > To: ap-gto@yahoogroups.com

> .> > Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> >

> .> >

> .> >

> .> > Tony,

> .> >

> .> > If you use SGPro, you can manually re-send the slew of same coordinates

> .> by clicking

> .> > on "Slew Now" button in Target Settings window.

> .> >

> .> > Peter

> .> >

> .> >

> .> >

> .> > ---In ap-gto@yahoogroups.com, tonybenjamin@...> wrote :

> .> >

> .> >

> .> >

> .> > Hi Ray,

> .> >

> .> >

> .> >

> .> > Thank You. This sounds like it was well thought out (for fools like me J).

> .> >

> .> >

> .> >

> .> > Appreciate the help.

> .> >

> .> >

> .> >

> .> >

> .> >

> .> > Cheers

> .> >

> .> >

> .> >

> .> > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > Sent: Tuesday, March 21, 2017 5:33 AM

> .> > To: ap-gto@yahoogroups.com

> .> > Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> >

> .> >

> .> >

> .> >

> .> >

> .> > Hi Tony,

> .> >

> .> >

> .> >

> .> > > So does that mean you just press that button and it will do a flip no

> matter

> .> > where it is?

> .> >

> .> >

> .> >

> .> > APCC will in most cases pop up a window to confirm, but the general rules

> .> are in the

> .> > help file, which I have copied and pasted here:

> .> >

> .> > Pier Flip Button: This button will initiate a pier flip under the following

> .> conditions:

> .> >

> .> > * If the scope has crossed the meridian, the button will flip it by simply

> .> issuing a GoTo

> .> > slew command to the current coordinates.

> .> >

> .> > * If the scope has not yet reached the meridian, but its coordinates are

> within

> .> the

> .> > "safe zone" of the meridian limits, a meridian offset will be set to allow the

> flip,

> .> followed

> .> > by the GoTo slew command to the current coordinates.

> .> >

> .> > * If the scope has not yet reached the meridian, and it is NOT in a safe

> zone

> .> vis-a-vis

> .> > the meridian limits, no flip slew will occur.

> .> >

> .> > -Ray Gralak

> .> > Author of APCC (Astro-Physics Command Center): www.astro-

> .> > physics.com/index.htm?products/accessories/software/apcc/apcc

> .> > Author of PEMPro: www.ccdware.com

> .> > Author of Astro-Physics V2 ASCOM Driver:

> www.gralak.com/apdriver

> .> > Author of PulseGuide: www.pulseguide.com

> .> > Author of Sigma: www.gralak.com/sigma

> .> >

> .> >

> .> >

> .> > > -----Original Message-----

> .> > > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > > Sent: Monday, March 20, 2017 11:27 AM

> .> > > To: ap-gto@yahoogroups.com

> .> > > Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> > >

> .> > >

> .> > >

> .> > > Hi Ray,

> .> > >

> .> > >

> .> > >

> .> > > So does that mean you just press that button and it will do a flip no

> matter

> .> > where it is?

> .> > >

> .> > >

> .> > >

> .> > > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > > Sent: Mond ay, March 20, 2017 5:06 AM

> .> > > To: ap-gt o@yahoogroups.com mailto:ap-gto@yahoogroups.com>

> .> > > Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> > >

> .> > >

> .> > >

> .> > >

> .> > >

> .> > > Hi Tony and Peter,

> .> > >

> .> > > Starting with APCC v1.5.0.13 (Standard and Pro) a "Pier Flip" button

> was

> .> > added in

> .> > > APCC's "Move Scope" group box.

> .> > >

> .> > > -Ray Gralak

> .> > > Author of APCC (Astro-Physics Command Center): www.astro-

> .> > > physics.com/index.htm?products/accessories/software/apcc/apcc

> .> > > Author of PEMPro: www.ccdware.com

> .> > > Author of Astro-Physics V2 ASCOM Driver:

> .> www.gralak.com/apdriver

> .> > > Author of PulseGuide: www.pulseguide.com

> .> www.pulseguide.c

> .> > om www.pulseguide.c%20om> >

> .> > > Author of Sigma: www.gralak.com/sigma

> .> > >

> .> > > > -----Original Message-----

> .> > > > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > > > Sent: Monday, March 20, 2017 4:38 AM

> .> > > > To: ap-gto@yahoogroups.com

> .> > > > Subject: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> > > >

> .> > > >

> .> > > >

> .> > > > Hi Tony,

> .> > > >

> .> > > > There are several ways.

> .> > > >

> .> > > > Easiest is to re-send the slew command of the same object

> (i.e.Beehive

> .> > Cluster) the

> .> > > > mount is currently pointing and if the mount (CP3 /4 box) knows CW is

> .> > higher than

> .> > > the

> .> > > > scope, it will automatically flip.

> .> > > >

> .> > > > Or even better, enable Meridian Flip in SGP and set how many

> minutes

> .> > past the

> .> > > > Meridian before flipping.

> .> > > >

> .> > > > There is no dire ct "Flip Meridian" command.

> .> > > >

> .> > > > Peter (AKA Peter in Reno at CN)

> .> > > >

> .> > > >

> .> > > >

> .> > > > ---In ap-gto@yahoogroups.com,

> .> > > dvuolhhr6nx4a532a3phnju3zs6lzvlgxdl2wzaf@...>

> .> > > > wrote :

> .> > > >

> .> > > >

> .> > > >

> .> > > > HI,

> .> > > >

> .> > > >

> .> > > > I wanted to try and image the Beehive Cluster tonight (beginner).

> When I

> .> > aimed the

> .> > > > scope at the Cluster the CWs ended up above horizontal - pretty much

> .> on

> .> > the

> .> > > > Meridia n. I would like the CWs on the opposite side (West side

> instead

> .> of

> .> > East).

> .> > > How

> .> > > > do you do this manually? Can it be done in APC C or with the AP

> driver?

> .> > > >

> .> > > >

> .> > > > Thanks

> .> > > >

> .> > > >

> .> > > >

> .> > > >

> .> > > >

> .> > >

> .> > >

> .> >

> .> >

> .>

> .>

>

>







----------------------------

#56118 Mar 22, 2017

Sounds like APCC is a very cool program but my setup is always portable and so

> far I do not have the need for it



That's ok, Peter! I was not trying to "sell" you on APCC. I was just trying to provide a complete and accurate answer for the original poster, Tony, because he had mentioned APCC in his original post.



Also, I think it was stated that there was no direct "Flip Meridian" command. Although that is technically true, APCC implements the set of commands required to do that via a single button click (plus a confirmation dialog).



But, as you have already alluded, you can accomplish the same thing as APCC's single-click pier flip in two steps with the ASCOM driver by setting the meridian delay appropriately and then issuing a slew from the driver's bookmark window. Or you could do a similar thing from the AP hand controller, or SGPro after appropriately setting the meridian delay.



Best regards,



-Ray Gralak

Author of APCC (Astro-Physics Command Center): www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc

Author of PEMPro: www.ccdware.com

Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

Author of PulseGuide: www.pulseguide.com

Author of Sigma: www.gralak.com/sigma



> -----Original Message-----

> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> Sent: Wednesday, March 22, 2017 6:49 AM

> To: ap-gto@yahoogroups.com

> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

>

>

>

> Gotcha.

>

> Sounds like APCC is a very cool program but my setup is always portable and so

> far I do not have the need for it. I always image one object per night and I know

> my area and sky very well to know whether the object I am imaging needs

> Meridian Flipping or not. In my case, I do not need Meridian Flipping for objects

> located at the Southern sky (relative to Horizon) up to Zenith. North of Zenith, I

> need to use Meridian Flip.

>

> Peter

>

>

>

> ---In ap-gto@yahoogroups.com, groups3@...> wrote :

>

>

> Hi Peter,

>

>

>

> .> In your example about the mount going from CW down to CW up with

> appropriate

> .> Meridian Delay settings, I believe the mount will flip without conditions

> with SGPro's

> .> Slew Now button. It should be no different than slew command sent from

> planetarium

> .> or 3rd party software.

>

>

>

> But, with APCC's pier flip feature you don't need to worry about setting the

> meridian delay. APCC's flip feature is not just a smart slew. After flipping the

> scope with APCC's pier flip button, clicking the button again will again cause a

> pier flip. Never do you need to set or worry about setting a meridian delay to do

> this. It is all done in the background.

>

> So, using APCC's pier flip button X number if times in a row will flip the scope X

> times. Clicking any planetarium software's button to slew to the same RA/Dec will

> flip the scope at most once. Additional clicks to slew to the same coordinates will

> not flip the scope.

>

> BTW, I'm only continuing to make this point because the topic is "how to *force* a

> meridian flip". I do not think you can always *force* a flip by resending the current

> RA/Dec coordinates, which is what the hand controller, SGPro, or any planetarium

> program would do.

>

> Best regards,

>

> -Ray Gralak

> Author of APCC (Astro-Physics Command Center): www.astro-

> physics.com/index.htm?products/accessories/software/apcc/apcc

> Author of PEMPro: www.ccdware.com

> Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

> Author of PulseGuide: www.pulseguide.com

> Author of Sigma: www.gralak.com/sigma

>

>

>

>

> .> -----Original Message-----

> .> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> Sent: Wednesday, March 22, 2017 3:07 AM

> .> To: ap-gto@yahoogroups.com

> .> Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .>

> .>

> .>

> .> Hi Ray,

> .>

> .> I understand that APCC's pier flip button is a smart slew command

> containing

> .> conditions whether to perform a Meridian Flip or not. I agree with you that

> SGPro's

> .> Slew Now does not do that, it simply sends a slew command to the mount

> without

> .> conditions and it's up to the mount to perform the Meridian Flip

> depending on the

> .> CW's current position and Meridian Delay settings.

> .>

> .> In your example about the mount going from CW down to CW up with

> appropriate

> .> Meridian Delay settings, I believe the mount will flip without conditions

> with SGPro's

> .> Slew Now button. It should be no different than slew command sent from

> planetarium

> .> or 3rd party software.

> .>

> .> FYI, I don't use Meridian Delay for imaging thanks to SGPro ease of use

> but I

> .> understand how Meridian Delay works. I used to use Meridian Delay with

> finderscope

> .> and Hand Controller for polar alignment. Now I use PoleMaster for polar

> alignment

> .> and use RAPAS from then on.

> .>

> .> Peter

> .>

> .>

> .>

> .> ---In ap-gto@yahoogroups.com, groups3@...> wrote :

> .>

> .>

> .> Hi Peter,

> .>

> .> My point was that I don.t think that SGPro's Slew Now button will always

> cause a pier

> .> flip like what APCC's pier flip button will do. For example, if you wanted to

> do a pier flip

> .> from a counterweight down position to a counterweight up position,

> issuing a slew

> .> with SGPro would not cause a pier flip without also setting the meridian

> delay

> .> appropriately. I hope I am making clear the difference?

> .>

> .> -Ray Gralak

> .> Author of APCC (Astro-Physics Command Center): www.astro-

> .> physics.com/index.htm?products/accessories/software/apcc/apcc

> .> Author of PEMPro: www.ccdware.com

> .> Author of Astro-Physics V2 ASCOM Driver:

> www.gralak.com/apdriver

> .> Author of PulseGuide: www.pulseguide.com

> .> Author of Sigma: www.gralak.com/sigma

> .>

> .>

> .>

> .>

> .> > -----Original Message-----

> .> > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > Sent: Tuesday, March 21, 2017 8:25 PM

> .> > To: ap-gto@yahoogroups.com

> .> > Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> >

> .> >

> .> >

> .> > Hi Ray,

> .> >

> .> > SGPro has no idea what's a Meridian Delay is, so it won't put up a

> .> confirmation

> .> > window like APCC does. So pressing the "Slew Now" button is simply

> .> sending a slew

> .> > to the mount as if it was sent by the Hand Controller..

> .> >

> .> > I hope I understood your question.

> .> >

> .> > Peter

> .> >

> .> >

> .> >

> .> > ---In ap-gto@yahoogroups.com, groups3@...> wrote :

> .> >

> .> >

> .> > Hi Peter,

> .> >

> .> >

> .> >

> .> > > If you use SGPro, you can manually re-send the slew of same

> coordinates

> .> > by clicking

> .> > > on "Slew Now" button in Target Settings window.

> .> >

> .> >

> .> >

> .> > Does SGPro flip the scope from normal counterweight down to

> .> counterweight up

> .> > without also having to change the meridian delay?

> .> >

> .> > The one-click flip in APCC allows a way to do flips in either scope

> orientation

> .> (CW-up

> .> > -> CW-down, and also CW-down -> CW-up)

> .> >

> .> > -Ray Gralak

> .> > Author of APCC (Astro-Physics Command Center): www.astro-

> .> > physics.com/index.htm?products/accessories/software/apcc/apcc

> .> > Author of PEMPro: www.ccdware.com

> .> > Author of Astro-Physics V2 ASCOM Driver:

> www.gralak.com/apdriver

> .> > Author of PulseGuide: www.pulseguide.com

> .> > Author of Sigma: www.gralak.com/sigma

> .> >

> .> >

> .> >

> .> >

> .> > > -----Original Message-----

> .> > > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > > Sent: Tuesday, March 21, 2017 8:58 AM

> .> > > To: ap-gto@yahoogroups.com

> .> > > Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> > >

> .> > >

> .> > >

> .> > > Tony,

> .> > >

> .> > > If you use SGPro, you can manually re-send the slew of same

> coordinates

> .> > by clicking

> .> > > on "Slew Now" button in Target Settings window.

> .> > >

> .> > > Peter

> .> > >

> .> > >

> .> > >

> .> > > ---In ap-gto@yahoogroups.com, tonybenjamin@...> wrote :

> .> > >

> .> > >

> .> > >

> .> > > Hi Ray,

> .> > >

> .> > >

> .> > >

> .> > > Thank You. This sounds like it was well thought out (for fools like me

> J).

> .> > >

> .> > >

> .> > >

> .> > > Appreciate the help.

> .> > >

> .> > >

> .> > >

> .> > >

> .> > >

> .> > > Cheers

> .> > >

> .> > >

> .> > >

> .> > > From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> .> > > Sent: Tuesday, March 21, 2017 5:33 AM

> .> > > To: ap-gto@yahoogroups.com

> .> > > Subject: RE: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> > >

> .> > >

> .> > >

> .> > >

> .> > >

> .> > > Hi Tony,

> .> > >

> .> > >

> .> > >

> .> > > > So does that mean you just press that button and it will do a flip no

> .> matter

> .> > > where it is?

> .> > >

> .> > >

> .> > >

> .> > > APCC will in most cases pop up a window to confirm, but the general

> rules

> .> > are in the

> .> > > help file, which I have copied and pasted here:

> .> > >

> .> > > Pier Flip Button: This button will initiate a pier flip under the following

> .> > conditions:

> .> > >

> .> > > * If the scope has crossed the meridian, the button will flip it by simply

> .> > issuing a GoTo

> .> > > slew command to the current coordinates.

> .> > >

> .> > > * If the scope has not yet reached the meridian, but its coordinates

> are

> .> within

> .> > the

> .> > > "safe zone" of the meridian limits, a meridian offset will be set to allow

> the

> .> flip,

> .> > followed

> .> > > by the GoTo slew command to the current coordinates.

> .> > >

> .> > > * If the scope has not yet reached the meridian, and it is NOT in a

> safe

> .> zone

> .> > vis-a-vis

> .> > > the meridian limits, no flip slew will occur.

> .> > >

> .> > > -Ray Gralak

> .> > > Author of APCC (Astro-Physics Command Center): www.astro-

> .> > > physics.com/index.htm?products/accessories/software/apcc/apcc

> .> > > Author of PEMPro: www.ccdware.com

> .> > > Author of Astro-Physics V2 ASCOM Driver:

> .> www.gralak.com/apdriver

> .> > > Author of PulseGuide: www.pulseguide.com

> .> > > Author of Sigma: www.gralak.com/sigma

> .> > >

> .> > >

> .> > >

> .> > > > -----Original Message-----

> .> > > > From: ap-gto@yahoogroups.com [mailto:ap-

> gto@yahoogroups.com]

> .> > > > Sent: Monday, March 20, 2017 11:27 AM

> .> > > > To: ap-gto@yahoogroups.com

> .> > > > Subject: RE: [ap-gto] Re: How To Force a Meridian Flip

> AP1100GTO

> .> > > >

> .> > > >

> .> > > >

> .> > > > Hi Ray,

> .> > > >

> .> > > >

> .> > > >

> .> > > > So does that mean you just press that button and it will do a flip no

> .> matter

> .> > > where it is?

> .> > > >

> .> > > >

> .> > > >

> .> > > > From: ap-gto@yahoogroups.com [mailto:ap-

> gto@yahoogroups.com]

> .> > > > Sent: Mond ay, March 20, 2017 5:06 AM

> .> > > > To: ap-gt o@yahoogroups.com mailto:ap-gto@yahoogroups.com>

> .> > > > Subject: RE: [ap-gto] Re: How To Force a Meridian Flip

> AP1100GTO

> .> > > >

> .> > > >

> .> > > >

> .> > > >

> .> > > >

> .> > > > Hi Tony and Peter,

> .> > > >

> .> > > > Starting with APCC v1.5.0.13 (Standard and Pro) a "Pier Flip"

> button

> .> was

> .> > > added in

> .> > > > APCC's "Move Scope" group box.

> .> > > >

> .> > > > -Ray Gralak

> .> > > > Author of APCC (Astro-Physics Command Center):

> www.astro-

> .> > > > physics.com/index.htm?products/accessories/software/apcc/apcc

> .> > > > Author of PEMPro: www.ccdware.com

> .> > > > Author of Astro-Physics V2 ASCOM Driver:

> .> > www.gralak.com/apdriver

> .> > > > Author of PulseGuide: www.pulseguide.com

> .> > www.pulseguide.c

> .> > > om www.pulseguide.c%20om> >

> .> > > > Author of Sigma: www.gralak.com/sigma

> .> > > >

> .> > > > > -----Original Message-----

> .> > > > > From: ap-gto@yahoogroups.com [mailto:ap-

> gto@yahoogroups.com]

> .> > > > > Sent: Monday, March 20, 2017 4:38 AM

> .> > > > > To: ap-gto@yahoogroups.com

> .> > > > > Subject: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

> .> > > > >

> .> > > > >

> .> > > > >

> .> > > > > Hi Tony,

> .> > > > >

> .> > > > > There are several ways.

> .> > > > >

> .> > > > > Easiest is to re-send the slew command of the same object

> .> (i.e.Beehive

> .> > > Cluster) the

> .> > > > > mount is currently pointing and if the mount (CP3 /4 box) knows

> CW is

> .> > > higher than

> .> > > > the

> .> > > > > scope, it will automatically flip.

> .> > > > >

> .> > > > > Or even better, enable Meridian Flip in SGP and set how many

> .> minutes

> .> > > past the

> .> > > > > Meridian before flipping.

> .> > > > >

> .> > > > > There is no dire ct "Flip Meridian" command.

> .> > > > >

> .> > > > > Peter (AKA Peter in Reno at CN)

> .> > > > >

> .> > > > >

> .> > > > >

> .> > > > > ---In ap-gto@yahoogroups.com,

> .> > > > dvuolhhr6nx4a532a3phnju3zs6lzvlgxdl2wzaf@...>

> .> > > > > wrote :

> .> > > > >

> .> > > > >

> .> > > > >

> .> > > > > HI,

> .> > > > >

> .> > > > >

> .> > > > > I wanted to try and image the Beehive Cluster tonight (beginner).

> .> When I

> .> > > aimed the

> .> > > > > scope at the Cluster the CWs ended up above horizontal - pretty

> much

> .> > on

> .> > > the

> .> > > > > Meridia n. I would like the CWs on the opposite side (West side

> .> instead

> .> > of

> .> > > East).

> .> > > > How

> .> > > > > do you do this manually? Can it be done in APC C or with the AP

> .> driver?

> .> > > > >

> .> > > > >

> .> > > > > Thanks

> .> > > > >

> .> > > > >

> .> > > > >

> .> > > > >

> .> > > > >

> .> > > >

> .> > > >

> .> > >

> .> > >

> .> >

> .> >

> .>

> .>

>

>







----------------------------

#56119 Mar 22, 2017

Ray,



----------------------------

#56130 Mar 22, 2017

Hi Joe,



Thanks for the feedback!



But, I can't take credit for all the ideas in APCC. Many were mine, but there have been many ideas from users and also A-P, like the new Homing tab, which was Howard's idea. I think there are a number of features that were inspired by your posts and private emails.



-Ray Gralak

Author of APCC (Astro-Physics Command Center): www.astro-physics.com/index.htm?products/accessories/software/apcc/apcc

Author of PEMPro: www.ccdware.com

Author of Astro-Physics V2 ASCOM Driver: www.gralak.com/apdriver

Author of PulseGuide: www.pulseguide.com

Author of Sigma: www.gralak.com/sigma



> -----Original Message-----

> From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

> Sent: Wednesday, March 22, 2017 9:35 AM

> To: ap-gto@yahoogroups.com

> Subject: Re: [ap-gto] Re: How To Force a Meridian Flip AP1100GTO

>

>

>

> Ray,

>

> Your .APCC Pier Flip. button comes in very handy when we need to shim our

> saddles, adjusting for parallax error. Flipping back and forth so easily, allows

> comparing a target star position on each side of the pier, as we alter the brass shim

> thickness.

> This used to be a real hassle using Meridian Delay for this .iterative. pier flip process,

> until now. Also, the user can.t screw things up and accidentally crash the OTA into

> something outside the Safe Zone.

>

> Do you ever get any sleep? In creating APCC, you really thought about nearly every

> possible user screw-up.

>

> Joe Z.

>

>



----------------------------

#57649 Jul 23, 2017

Hello AP-ers,

Wanted to share another image with you guys.

www.astrobin.com/full/304430/C/



This is the Crescent Nebula, Soap Bubble, and IC4996 in Ha/OIII taken over the course of the last week. At this point in the integration I have an abundance of HA data, and still relatively small amounts of OIII. Luckily, the skies are glass for the nextfew days, so I should be able to close the gap there. At this point I have 8.5 hours of HA and 3.25 hours of OIII. 

RMS during the imaging sequences was about .35-.50. The mount worked perfectly with Extreme Dithering turned on every 5 frames for the HA and I increased it to every 3 frames for the OIII data. The AP1100 handled it like it was nothing! Considering the scope,I am not sure the mount even knew it was there. :) 

102 x 5 min HA39 x 5 min OIII

Blend of the data was:

RED: HAGREEN: 60% OIII, 40 % HABLUE: OIII

Imaging camera was the QSI690WSG-8Telescope was the Takahashi FSQ106EDX w/ MoonLite CXL 3.6" focuser and 0.73x Reducer (so F/3.6 @ 389mm)Guide camera was the ASI120MM-S

Would love to hear what people think. I am a huge fan of the fiery looking bicolor integrations, so I am over the moon about how this one is shaping up.

Clear skies!

Bill 



----------------------------

#57651 Jul 24, 2017

An excellent image Bill,Plus I took a look at some of your other images at Astrobin; a very nice collection indeed.Regards,

Geof

From: ap-gto@yahoogroups.com ap-gto@yahoogroups.com> on behalf of Bill Long bill@... [ap-gto] ap-gto@yahoogroups.com>

Sent: 24 July 2017 01:14

To: ap-gto@yahoogroups.com

Subject: [ap-gto] Another Image w/ AP1100GTO 



----------------------------

#57659 Jul 24, 2017

I think it turned out really nicely Bill!

Stuart



----------------------------

#58143 Sep 3, 2017

I am wondering if I may have an issue with my AP 1100 GTOmount.

I.ve had it for a little over a year now and it has workedwithout issue. I am using it for astrophotography with a C11 Edge @ 2800mm withan Ultrastar guide come on a COAG. PHD2 is my guiding software and normally myguiding has me around .3/.4 RMS in both RA and Dec. I have noticed lately thatthe numbers were getting a bit higher but just assumed it was atmosphericconditions. Although I had also noted that of late my stars have been a bit out of round even on short 30 sec subs.

Last night I was getting around .7 Ra and .5 Dec with aTotal RMS near 1.0 arc/sec. I decided I would run a new calibration just to tryand tighten things up. Unfortunately I could not get a successful calibration.PHD2 would be complaining about RA and Dec guiding rates differing by too much.

I started a post on Cloudy Nights (www.cloudynights.com/topic/590415-help-with-phd2-guiding-cant-calibrate/#entry8082854)before posting this issue here.

I haven.t changed anything in my routine and the only thingI did different was to run a calibration last night. I also made sure my PA wasaccurate, and it is, as you can see in the pics at Cloudy Nights.

It was suggested that I may need to remesh the gears? Anyother thoughts on what may be causing this?



----------------------------

#58145 Sep 3, 2017

If all else fails check the tightness of all of your screwed connections. Your bolting to your telescope; the bolting of the saddle to the mount; the bolting of the sections of your declination and RA axis.



Check the stability of your optics too. No mirror flop. No looseness of secondary. Tightness of all camera components.



I only mention this because I had a situation where the continual hot/cold (day/night) caused some of my bolting to loosen. I had guiding problems. Once I went through a check of all my bolting the problem was resolved.



That may not be your issue, but it does not hurt to check.



Alan



Sent from Mail for Windows 10



From: dvuolhhr6nx4a532a3phnju3zs6lzvlgxdl2wzaf@... [ap-gto]

Sent: Sunday, September 3, 2017 10:38 AM

To: ap-gto@yahoogroups.com

Subject: [ap-gto] AP 1100GTO Can't Calibrate in PHD2 All of a Sudden?









I am wondering if I may have an issue with my AP 1100 GTO mount.

I.ve had it for a little over a year now and it has worked without issue. I am using it for astrophotography with a C11 Edge @ 2800mm with an Ultrastar guide come on a COAG. PHD2 is my guiding software and normally my guiding has me around .3/.4 RMS in both RA and Dec. I have noticed lately that the numbers were getting a bit higher but just assumed it was atmospheric conditions. Although I had also noted that of late my stars have been a bit out of round even on short 30 sec subs.

Last night I was getting around .7 Ra and .5 Dec with a Total RMS near 1.0 arc/sec. I decided I would run a new calibration just to try and tighten things up. Unfortunately I could not get a successful calibration. PHD2 would be complaining about RA and Dec guiding rates differing by too much.

I started a post on Cloudy Nights (www.cloudynights.com/topic/590415-help-with-phd2-guiding-cant-calibrate/#entry8082854) before posting this issue here.

I haven.t changed anything in my routine and the only thing I did different was to run a calibration last night. I also made sure my PA was accurate, and it is, as you can see in the pics at Cloudy Nights.

It was suggested that I may need to remesh the gears? Any other thoughts on what may be causing this?



















[Non-text portions of this message have been removed]







----------------------------

#58148 Sep 3, 2017

Hi Alan,  Unfortunately I just did that as I recently put all my cables through the mount and made sure all was tightened as I put things back together.  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Sunday, September 03, 2017 8:48 AMTo: ap-gto@yahoogroups.comSubject: RE: [ap-gto] AP 1100GTO Can't Calibrate in PHD2 All of a Sudden?



----------------------------

#58154 Sep 3, 2017

Hi Tony.  If you'll post your guide log on our PHD2 support forum, we can probably help you figure out what's going on.

groups.google.com/forum/#!forum/open-phd-guiding

Cheers,Bruce



----------------------------

#58157 Sep 3, 2017

Will do,  Thanks  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Sunday, September 03, 2017 7:22 PMTo: ap-gto@yahoogroups.comSubject: [ap-gto] Re: AP 1100GTO Can't Calibrate in PHD2 All of a Sudden?



----------------------------

#58166 Sep 4, 2017

Although I had also noted that of late my stars have been a bit out of round even on short 30 sec subs.

Last night I was getting around .7 Ra and .5 Dec with aTotal RMS near 1.0 arc/sec. I decided I would run a new calibration just to tryand tighten things up. Unfortunately I could not get a successful calibration.PHD2 would be complaining about RA and Dec guiding rates differing by too much.



Hello,



If you have one of our original gearboxes, then re-meshing is quite simple and wouldn't hurt. However, I don't think that this will do anything to your guiding. As you noted above, you are getting .7 in RA. That axis is not affected whatsoever by gear mesh since the action of guiding in RA does not involve reversal of the axis, it just speeds up or slows down in response to guide signals. It is generally the Dec axis that is most affected by gear mesh, in that it takes longer to reverse if the mesh is loose.

IMPORTANT:  You may be trying to calibrate and guide at aspeed other than 1x sidereal. Please check and make sure that all yourcalibration is done at 1x, and guiding also! This is important,especially for the Dec axis. Reversal takes way too long at the slowerguide rates. Calibrate at the celestial equator near the meridian inorder to get the best cal numbers. You can use those setting anywhere inthe sky.



Your other observation that stars are a bit out of round even in short exposures hints at something else besides guiding. Typically if stars are out of round in a very short exposure, you have astigmatism in the optical system. You can verify this by taking a 1 second exposure of a suitable bright star and checking the roundness. Sometimes an optical system will show tight round stars when you are at perfect focus, but show slightly oval stars when you are slightly out-of-focus. An out-of-focus guide star also affects guiding negatively.



With PHD you have all the resources to determine if the mount's gear mesh (Dec Axis) is good or not. You might want to run this test to see what you get. Doing a gear mesh on the original gearbox is as simple as loosening two screws, wiggling the gearbox to make sure that the springs are pushing the gears into mesh, and then tightening the screws back again (see you manual or our website on gear mesh). You can tell if the mesh is tight by pushing gently on the end of your tube assembly back and forth and noting if you can feel any looseness. One trick that i have discovered on the original gearbox is to tighten fully just the right side screw, then check the mesh by moving the scope back and forth. If it feels tight and you cannot feel any movement, your mesh is correct, and now simply turn the other screw until it touches the end, but do not tighten it fully. This will allow the springs to keep the gearbox in full mesh all the way around the gearwheel.



The same can be done with the RA axis, and you can check the mesh by pushing on the counterweight shaft gently back and forth to see if there is any looseness (be sure to have the counterweight shaft fully screwed in!).



One thing I always do before guiding is to judge the steadiness of the atmosphere. I start guiding on a reasonably bright guide star but turn off the guiding signals to the mount. I then monitor the drift in both axes for a short time just to get a feel for the RMS values that are due only to the atmosphere. This is especially applicable to declination since there is no action at all by the Dec motor, and any movement of the guide star in the Dec line will be strictly due to atmospheric motion. You guider graph is your friend, always have it up during guiding so you can monitor any abnormalities.



I know this is a long post, but please read it and note the points above. Use the tools in your PHD program to help you troubleshoot any issue. They are quite powerful and can tell you a lot.





Roland ChristenAstro-Physics inc.





-----Original Message-----

From: dvuolhhr6nx4a532a3phnju3zs6lzvlgxdl2wzaf@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Sun, Sep 3, 2017 9:38 am

Subject: [ap-gto] AP 1100GTO Can't Calibrate in PHD2 All of a Sudden?





I am wondering if I may have an issue with my AP 1100 GTOmount.

I.ve had it for a little over a year now and it has workedwithout issue. I am using it for astrophotography with a C11 Edge @ 2800mm withan Ultrastar guide come on a COAG. PHD2 is my guiding software and normally myguiding has me around .3/.4 RMS in both RA and Dec. I have noticed lately thatthe numbers were getting a bit higher but just assumed it was atmosphericconditions. Although I had also noted that of late my stars have been a bit out of round even on short 30 sec subs.

Last night I was getting around .7 Ra and .5 Dec with aTotal RMS near 1.0 arc/sec. I decided I would run a new calibration just to tryand tighten things up. Unfortunately I could not get a successful calibration.PHD2 would be complaining about RA and Dec guiding rates differing by too much.

I started a post on Cloudy Nights (www.cloudynights.com/topic/590415-help-with-phd2-guiding-cant-calibrate/#entry8082854)before posting this issue here.

I haven.t changed anything in my routine and the only thingI did different was to run a calibration last night. I also made sure my PA wasaccurate, and it is, as you can see in the pics at Cloudy Nights.

It was suggested that I may need to remesh the gears? Anyother thoughts on what may be causing this?







----------------------------

#58167 Sep 4, 2017

Hi Chris,  Thank you for the info below, it is appreciated.  My mount (as far as I know) has the newest gearboxes, it is a GTOCP4 so I don.t think I need to re-mesh. I have checked/rechecked to make sure the boxes are tight and the backstops are tight. There is no play in either axis if I push on them externally. Everything looks good.  I confirmed that all items (AP V2 ASCOM driver/APCC/PHD2 are all at 1.0x sidereal rate.  I have done all PHD2 calibrations at the recommended position of +/- 20 degrees of the celestial equator and within an hour of the meridian.  I very recently did adjust my collimation as I did have a slight out of collimation issue. It has been reposted by Gold Focus as being very good now and my recent photos show it . prior to this issue.  .One thing I always do before guiding is to judge the steadiness of the atmosphere. I start guiding on a reasonably bright guide star but turn off the guiding signals to the mount. I then monitor the drift in both axes for a short time just to get a feel for the RMS values that are due only to the atmosphere. This is especially applicable to declination since there is no action at all by the Dec motor, and any movement of the guide star in the Dec line will be strictly due to atmospheric motion. You guider graph is your friend, always have it up during guiding so you can monitor any abnormalities..  How do you turn off the guiding? . just turn the aggressiveness down to .0. on both RA and Dec? PEC will be on for this?  Last night I got fed up with things (I lost a lot of subs - 50% of 1 min exposure due to these oval stars). I had never updated the AP factory set PEC curve . I bought the mount brand new and have had it for over a year now. So I went ahead and tried PEMPro for the first time. I muddled through the help file while trying to get a new curve (the help file is not the most intuitive with a lot of X and Y stuff I.m not sure on). Anyway in the end I did get a new PEC . I let PEMPro run for 6 cycles . and uploaded to the mount. I then took about 20 x 1min exposures with this new PEC curve and 18 of the 20 were perfect and the two that were tossed may have been me moving around in the observatory or a result of an AF run. Also the RMS numbers were now lower both at or slightly below .5 arcsec with the Total RMS error around .6 arcsec . so definite improvement.  I have the settle factors at 2.0px for 6 sec . is that enough or should I increase the time? I.m at 2800mm FL @ .28 image scale?  So I guess for now I will keep things as they are and see if the nice stars continue?  Would a bad PEC curve cause the out of round stars even on these very short exposures or am I out to lunch hoping this new curve was what was needed??    Thanks Chris    From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Monday, September 04, 2017 7:52 AMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] AP 1100GTO Can't Calibrate in PHD2 All of a Sudden?



----------------------------

#58168 Sep 4, 2017

You could set aggressiveness to 0 or you can disable guide corrections

in the "Advanced Settings" dialog under the "Guiding" tab - the field is

called "Enable mount guide output".



openphdguiding.org/man/Advanced_settings.htm



Michael Fulbright



----------------------------

#58200 Sep 5, 2017

Would a bad PEC curve cause the out of round stars even on these very short exposures or am I out to lunch hoping this new curve was what was needed?? 



A PE curve cannot be that bad to affect a guided image. I suggested that you do an unguided image but monitor your guider graph. Unguided means turning the aggressiveness to zero, but you still get to see what the guider is doing. You can turn PE on, and see what you get, then turn PE off and compare the results. Without knowing this data, you will never know anything about your system, and anything you do will be like shooting in the dark.





You say that your image scale is .28 arc seconds per pixel. That is rather severely oversampled, since the atmosphere rarely if ever lets you achieve 1.5 arc sec FWHM resolution. You also don't specify how you guide. Off-axis guider or separate guide scope? That makes a huge difference.





When you did the PE run in PEMPro, did the 6 cycles all lie on top of each other with the Adjust Drift boxes checked? Did you make sure that the run was made with PE turned OFF? Then did you do one last run with PE turned ON to check the improvement (Important: do not download this curve!).



Roland ChristenAstro-Physics Inc.





-----Original Message-----

From: 'Tony Benjamin' tonybenjamin@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Mon, Sep 4, 2017 10:37 am

Subject: RE: [ap-gto] AP 1100GTO Can't Calibrate in PHD2 All of a Sudden?





Hi Chris, Thank you for the info below, it is appreciated. My mount (as far as I know) has the newest gearboxes, it is a GTOCP4 so I don.t think I need to re-mesh. I have checked/rechecked to make sure the boxes are tight and the backstops are tight. There is no play in either axis if I push on them externally. Everything looks good. I confirmed that all items (AP V2 ASCOM driver/APCC/PHD2 are all at 1.0x sidereal rate. I have done all PHD2 calibrations at the recommended position of +/- 20 degrees of the celestial equator and within an hour of the meridian. I very recently did adjust my collimation as I did have a slight out of collimation issue. It has been reposted by Gold Focus as being very good now and my recent photos show it . prior to this issue. .One thing I always do before guiding is to judge the steadiness of the atmosphere. I start guiding on a reasonably bright guide star but turn off the guiding signals to the mount. I then monitor the drift in both axes for a short time just to get a feel for the RMS values that are due only to the atmosphere. This is especially applicable to declination since there is no action at all by the Dec motor, and any movement of the guide star in the Dec line will be strictly due to atmospheric motion. You guider graph is your friend, always have it up during guiding so you can monitor any abnormalities.. How do you turn off the guiding? . just turn the aggressiveness down to .0. on both RA and Dec? PEC will be on for this? Last night I got fed up with things (I lost a lot of subs - 50% of 1 min exposure due to these oval stars). I had never updated the AP factory set PEC curve . I bought the mount brand new and have had it for over a year now. So I went ahead and tried PEMPro for the first time. I muddled through the help file while trying to get a new curve (the help file is not the most intuitive with a lot of X and Y stuff I.m not sure on). Anyway in the end I did get a new PEC . I let PEMPro run for 6 cycles . and uploaded to the mount. I then took about 20 x 1min exposures with this new PEC curve and 18 of the 20 were perfect and the two that were tossed may have been me moving around in the observatory or a result of an AF run. Also the RMS numbers were now lower both at or slightly below .5 arcsec with the Total RMS error around .6 arcsec . so definite improvement. I have the settle factors at 2.0px for 6 sec . is that enough or should I increase the time? I.m at 2800mm FL @ .28 image scale? So I guess for now I will keep things as they are and see if the nice stars continue? Would a bad PEC curve cause the out of round stars even on these very short exposures or am I out to lunch hoping this new curve was what was needed??  Thanks Chris  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

Sent: Monday, September 04, 2017 7:52 AM

To: ap-gto@yahoogroups.com

Subject: Re: [ap-gto] AP 1100GTO Can't Calibrate in PHD2 All of a Sudden?







----------------------------

#58206 Sep 5, 2017

I will do 2 x 5 min unguided subs (one with PEC on and one with PEC off) with the aggressiveness turned down to .0. on the RA and Dec in PHD2.

I think you misunderstand. There is no point in taking an unguided sub because for sure all the stars will be oval, and that will not reveal anything to you.





The reason for the unguided run is to look at the resultant guider graph so you can determine the baseline seeing component before you do an actual guided run. Then compare both guider graphs and the RMS values. And you don't need to do 5 minute runs to determine the seeing component, just a quick 60 second look at the guider graph is enough and you will see how stable the air is.



One thing you might want to do is to bin your guider 3x3 because at your focal length you do not want to have a wildly pulsating guide star. If you are trying to guide at 1x1 binning on the guider chip, your guide software will be trying to follow every wiggle and pulsation in a desperate attempt to keep the star on the center point. At this time of year the temperatures are dropping rapidly in the evening and this results in plumes of warm air escaping up the baffle tube of a Schmidt-Cass scope. The warm air comes from the retained heat of the primary mirror, and the baffle tube is a natural chimney. These plumes cause havoc in the guide star, and will also produce out-of-round star images. These plumes do not go away until way early in the morning.





The cycles in PEMPro will NEVER lay on top of each other because for 6 cycles you inevitably get some RA and Dec drift, even if you have done a very careful drift alignment. 6 cycles is more than 1/2 hour of exposure, and it would be a miracle if there was no drift in either axis for that amount of time. That's why Ray has included the option of removing the drift portion of the data so that you can see if there are any anomalies in the different PE runs. PEMPro is a very powerful tool that allows you to not only do a curve for your mount, but it also lets you analyze the performance of the RA tracking. You can then monitor that over time to see if there are any changes.



Roland ChristenAstro-Physics Inc.





-----Original Message-----

From: 'Tony Benjamin' tonybenjamin@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Tue, Sep 5, 2017 11:09 am

Subject: RE: [ap-gto] AP 1100GTO Can't Calibrate in PHD2 All of a Sudden?





Hi Chris, Thank you for the information.  I will do 2 x 5 min unguided subs (one with PEC on and one with PEC off) with the aggressiveness turned down to .0. on the RA and Dec in PHD2. I guess I could just uncheck the .Enable mount guide output. on the guiding tab of advanced setup as well . that would amount to the same thing? Yes, my seeing isn.t usually bad around here . averaging 2.0 . 2.5. I am using an OAG. It.s a SX attached directly to the SX filter wheel, so quite solid/rigid. Guide camera is a SX Ultrastar. I have zero experience with PEMPro, so unfortunately the six cycles did not lay on top of each other (guess I didn.t have the .Adjust Drift. boxes checked. I just looked for this box and cannot see it as an option under the .Acquire Data. Tab? I will keep looking for it. I did have PE turned .Off.. No, I didn.t do a run in PEMPro with the new curve to see the difference . I just went and uploaded it to the mount. I will get on this ASAP . but of course the wx has turned now and no clear nights in the forseeable future.  Thanks Again Tony    From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

Sent: Tuesday, September 05, 2017 7:44 AM

To: ap-gto@yahoogroups.com

Subject: Re: [ap-gto] AP 1100GTO Can't Calibrate in PHD2 All of a Sudden?



----------------------------

#59256 Oct 30, 2017

Hi,Trying to get my 1100GTO (about 1 yr old) w/ CP4 to park properly thru The SKYX with the ASCOM connection to APCC.  When I set the park position in APCC and use the SKYX all works fine slewing but when I try to park from the SKYX menu, it just parks the scope in place (without moving it to the APCC Park Position).  If I go over to APCC and Park it, it works fine.  However, I want to do some scripting in the SKYX but can't use the Park command since it doesn't slew to my APCC set park position.  I'm sure I'm just not setting something correctly, but I've been trying to get this resolved for some time now.  If this is a permanent issue, I could try to connect to the APCC / CP4 directly in my script and issue the Park command, but not sure if this is best and would need to find a sample script to work with.

So, thanks for the help.

Greg



----------------------------

#59257 Oct 30, 2017

I believe that you have to establish a park position in TheSkyX first before you can use it. Then send the mount to that position. Others may chime in here.



Rolando



-----Original Message-----

From: greg@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Mon, Oct 30, 2017 12:01 pm

Subject: [ap-gto] Parking 1100GTO thru The SKYX





Hi,Trying to get my 1100GTO (about 1 yr old) w/ CP4 to park properly thru The SKYX with the ASCOM connection to APCC.  When I set the park position in APCC and use the SKYX all works fine slewing but when I try to park from the SKYX menu, it just parks the scope in place (without moving it to the APCC Park Position).  If I go over to APCC and Park it, it works fine.  However, I want to do some scripting in the SKYX but can't use the Park command since it doesn't slew to my APCC set park position.  I'm sure I'm just not setting something correctly, but I've been trying to get this resolved for some time now.  If this is a permanent issue, I could try to connect to the APCC / CP4 directly in my script and issue the Park command, but not sure if this is best and would need to find a sample script to work with.



So, thanks for the help.



Greg







----------------------------

#59258 Oct 30, 2017

Greg,  Be sure that you have the SkyX set to connect via ASCOM Mount.   Also be sure that you Clear the park position in SkyX.s drop down menu.  Regards,  George  George WhitneyAstro-Physics, Inc.Phone:  815-282-1513Email:  george@...

 From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]

Sent: Monday, October 30, 2017 12:01 PM

To: ap-gto@yahoogroups.com

Subject: [ap-gto] Parking 1100GTO thru The SKYX



----------------------------

#59277 Oct 31, 2017

I have experienced greater declination backlash from day one in my 1100GTO purchased new in December of 2015 than I would have anticipated.  I have played around with adjusting the worm mesh using both the slewing and park 3 push on the gearbox methods, but have not seen any significant change in the behavior.  I do not feel any backlash when I try to wiggle the declination axis, so I believe the preload on the worm bearing is adequately tight.

The leaves the reduction spur gear-set as the next possible source of backlash.  I took the cover off of the gear box and indeed I found that there was about 3 teeth worth of play at the small gear on the motor shaft.  I removed the intermediate gear with the three holes spaced 120 degrees apart and discovered what the holes are for.  The position of the pivot point of this gear is adjustable and the hex head screw that locks the pivot position in place is accessed through these holes.  With the gear in place I rotated the gear to allow the hex wrench to loosen the screw.  Using rotation of the motor shaft gear in one direction or the other tightens or loosens the lash of the gear-set.  I was able to take out virtually all the lash without the gears binding.  I then readjusted the worm mesh and ran the axis through 360 degrees to verify there was no binding anywhere in the full range of motion.

For the heck of it I opened up the RA gearbox and found that it too had significant backlash, though less at about 2.5 teeth of motion.  I went ahead and adjusted the gearbox and then the worm mesh and verified full 360 operation.  Of course, in theory, this should have no effect on guiding as long as the guide sped is 1 or below.

The proof is in the pudding, but of course the weather here is going to be bad for at least the next week, so it will be a while before I will know if this has any positive effect on the declination issue.  I have not found anything about making this adjustment on the 1100GTO on this site or the AP site.  But I did find a link on this site to AP instructions on various adjustments on the 1200GTO, but not the reduction spur gear-set play.  Here is the link:  www.astro-physics.com/tech_support/mounts/1200gto/Gear%20Mesh%201200.pdf.  At least it defines the proper terminology to use for various aspects and does show some other possible sources of lash that could be seen in other models as well.

I will post with results when I finally to get suitable conditions.  I am interested if anyone out there has played with this adjustment.  It is not clear that this adjustment is possible on other models, and may be a refinement first incorporated on the 1100GTO.  I had been looking at retrofitting with the self-adjusting worm gear boxes, but if this results in the kind of improvement I think is possible, I may not need that.  It would be interesting to compare the performance in this regard to the original like mine and the latest version.

Greg



----------------------------

#60563 Jan 24

I currently have a Mach1 that I use at home on a pier and I also travel with it using a Losmandy tripod.

Eventually I'd like to replace the Mach1 with an 1100GTO and I'm wondering if it is possible to mount the 1100 on the Losmandy tripod?  I didn't see a specific adapter for the 1100 like there is for the Mach1.joel



----------------------------

#60565 Jan 24

Thanks George.  I see how it works now.  I need the LT2APM for the tripod (which I already have with the Mach1) and the 119FSA for the 1100GTO.joel



----------------------------

#60566 Jan 24

Fwiw I use an older G11 tripod (non folding legs) with my 1100, using the FSA and the tripod adapter.   It works well.  

Btw - I leave the FSA and tripod adapter attached to the 1100 when transporting it.  Assembly is simplified - just the three bolts to attach the mount to the tripod. 

Sent from my iPhone

On Jan 24, 2018, at 12:53 PM, George george@... [ap-gto] ap-gto@yahoogroups.com> wrote:



 Joel,  The 119FSA Flat Surface Adapter is what you are looking for:www.astro-physics.com/products/mounts/1100gto/1100upgrades.htm#119fsa  Regards,  George  George WhitneyAstro-Physics, Inc.Phone:  815-282-1513Email:  george@...

 From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com]Sent: Wednesday, January 24, 2018 2:12 PMTo: ap-gto@yahoogroups.comSubject: [ap-gto] 1100GTO and Losmandy Tripod



----------------------------

#60584 Jan 25

I used the Losmandy folding tripod with my 1100 for about two years with no problems. I got an ATS and sold the Losmandy, but it wasn.t because of any problem with the Losmandy, just that the ATS is so nice.



Mark V

On Jan 25, 2018, at 4:56 AM, buckeyestargazer@... [ap-gto] ap-gto@yahoogroups.com> wrote:

Thanks George.  I see how it works now.  I need the LT2APM for the tripod (which I already have with the Mach1) and the 119FSA for the 1100GTO.joel



----------------------------

#60597 Jan 25

I use this config with the folding Losmandy HD Tripod and it works great. I added the 12" Losmandy pier extension to it as well. 





From: ap-gto@yahoogroups.com ap-gto@yahoogroups.com> on behalf of buckeyestargazer@... [ap-gto] ap-gto@yahoogroups.com>

Sent: Wednesday, January 24, 2018 12:56 PM

To: ap-gto@yahoogroups.com

Subject: RE: [ap-gto] 1100GTO and Losmandy Tripod 







----------------------------

#60598 Jan 25

Thanks Bill.  I too have the folding tripod so it's good to know it will work with the 1100 (or 900 for me).joel



----------------------------

#60609 Jan 25

I also use the same setup with a C14. My imaging payload is 65lbs and it.s very stable. I have to hit the OTA to see any vibrations and it still dampens real quick. I.m using the CP3 which is the exact same width as the Gemini II box. I modded mine so it can mount onto the HD tripod with 1/4-20 knobs. I found my 1100 used last month through Woodland Hills at a great bargain so keep looking. They.re worth it for the internal cable routing alone. Mine has a powered USB 3.0 hub mounted directly under the saddle.



Joe



----------------------------

#60663 Jan 29

I have an original 1100GTO mount that has the gearboxes with the small screws covering holes in the top. I went to re-mesh my gearbox and thought that these screws were covering the ones to be loosened off and then tightened back up. adjusted them looser but they already seemed loose so I tightened them up very lightly but could not get any better gear mesh. I loosened them off to approximately where they were originally and came inside to check out the online resources in the Tech pages but they were no help as they reference the latest gearboxes with the lever adjusting system. So, what did I actually change, how do I returnthem to their proper position, and where is the info for the older mounts on how to adjust the gearbox to remove the backlash?



----------------------------

#60664 Jan 29

I also have original and first run A-P1100GTO. You adjusted the wrong screws, those screws underneath the panhead screws are for spring loaded tension adjustment. I use the following instructions for gear mesh adjustment:

www.astro-physics.com/tech_support/mounts/Gear%20Mesh%201600,%201100,%20Mach1%20-%202014-10-24.pdf

It has very clear pictures.

Peter

---In ap-gto@yahoogroups.com, JunkMailGoesHere@...> wrote :

I have an original 1100GTO mount that has the gearboxes with the small screws covering holes in the top. I went to re-mesh my gearbox and thought that these screws were covering the ones to be loosened off and then tightened back up. adjusted them looser but they already seemed loose so I tightened them up very lightly but could not get any better gear mesh. I loosened them off to approximately where they were originally and came inside to check out the online resources in the Tech pages but they were no help as they reference the latest gearboxes with the lever adjusting system. So, what did I actually change, how do I returnthem to their proper position, and where is the info for the older mounts on how to adjust the gearbox to remove the backlash?



----------------------------

#60665 Jan 29

I went to re-mesh my gearbox and thought that these screws were covering the ones to be loosened off and then tightened back up.

These screws were not meant to be adjusted. They simply cover up the screws that hold the springs in place. Basically you did nothing. You can put the spring pressure back to where it was by turning those screws (the ones underneath the cover screws) until they are tight, then back them both off one turn. Then replace the cover screws and don't remove them again.



To adjust the worm mesh, you need to simply loosen two screws on the back of the motor gearbox (gearbox lockdown screws). This will allow the springs to move the gearbox down until the worm is in full mesh. You might want to move the gearbox up and down to feel the spring pressure. Once you have the worm in mesh, first tighten the left screw gently then the right screw gently. Then fully tighten them both.



For more information about gearbox mesh on the older mounts, follow this PDF on our website: www.astro-physics.com/tech_support/mounts/Gear%20Mesh%201600,%201100,%20Mach1%20-%202014-10-24.pdf



Rolando





-----Original Message-----

From: JunkMailGoesHere@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Mon, Jan 29, 2018 5:07 pm

Subject: [ap-gto] Older 1100GTO gearbox adjustment





I have an original 1100GTO mount that has the gearboxes with the small screws covering holes in the top. I went to re-mesh my gearbox and thought that these screws were covering the ones to be loosened off and then tightened back up. adjusted them looser but they already seemed loose so I tightened them up very lightly but could not get any better gear mesh. I loosened them off to approximately where they were originally and came inside to check out the online resources in the Tech pages but they were no help as they reference the latest gearboxes with the lever adjusting system. So, what did I actually change, how do I returnthem to their proper position, and where is the info for the older mounts on how to adjust the gearbox to remove the backlash?



----------------------------

#60668 Jan 30

Thanks Peter! Now that I know where it is, I don't know how I managed to miss finding it. I was looking around the Tech Page. A case of looking but not seeing.

---In ap-gto@yahoogroups.com, pnagy@...> wrote :

I also have original and first run A-P1100GTO. You adjusted the wrong screws, those screws underneath the panhead screws are for spring loaded tension adjustment. I use the following instructions for gear mesh adjustment:

www.astro-physics.com/tech_support/mounts/Gear%20Mesh%201600,%201100,%20Mach1%20-%202014-10-24.pdf

It has very clear pictures.

Peter

---In ap-gto@yahoogroups.com, JunkMailGoesHere@...> wrote :

I have an original 1100GTO mount that has the gearboxes with the small screws covering holes in the top. I went to re-mesh my gearbox and thought that these screws were covering the ones to be loosened off and then tightened back up. adjusted them looser but they already seemed loose so I tightened them up very lightly but could not get any better gear mesh. I loosened them off to approximately where they were originally and came inside to check out the online resources in the Tech pages but they were no help as they reference the latest gearboxes with the lever adjusting system. So, what did I actually change, how do I returnthem to their proper position, and where is the info for the older mounts on how to adjust the gearbox to remove the backlash?







----------------------------

#60671 Jan 30

OK, crystal clear now. Between Peter's link to the in-depth instructions and your response, I can put things back to where they should be. First time I have had to adjust the gear mesh since I bought this mount. Great piece of machinery!

Thanks, Rick.

---In ap-gto@yahoogroups.com, chris1011@...> wrote :



I went to re-mesh my gearbox and thought that these screws were covering the ones to be loosened off and then tightened back up.



These screws were not meant to be adjusted. They simply cover up the screws that hold the springs in place. Basically you did nothing. You can put the spring pressure back to where it was by turning those screws (the ones underneath the cover screws) until they are tight, then back them both off one turn. Then replace the cover screws and don't remove them again.



To adjust the worm mesh, you need to simply loosen two screws on the back of the motor gearbox (gearbox lockdown screws). This will allow the springs to move the gearbox down until the worm is in full mesh. You might want to move the gearbox up and down to feel the spring pressure. Once you have the worm in mesh, first tighten the left screw gently then the right screw gently. Then fully tighten them both.



For more information about gearbox mesh on the older mounts, follow this PDF on our website: www.astro-physics.com/tech_support/mounts/Gear%20Mesh%201600,%201100,%20Mach1%20-%202014-10-24.pdf



Rolando





-----Original Message-----

From: JunkMailGoesHere@... [ap-gto] ap-gto@yahoogroups.com>

To: ap-gto ap-gto@yahoogroups.com>

Sent: Mon, Jan 29, 2018 5:07 pm

Subject: [ap-gto] Older 1100GTO gearbox adjustment





I have an original 1100GTO mount that has the gearboxes with the small screws covering holes in the top. I went to re-mesh my gearbox and thought that these screws were covering the ones to be loosened off and then tightened back up. adjusted them looser but they already seemed loose so I tightened them up very lightly but could not get any better gear mesh. I loosened them off to approximately where they were originally and came inside to check out the online resources in the Tech pages but they were no help as they reference the latest gearboxes with the lever adjusting system. So, what did I actually change, how do I returnthem to their proper position, and where is the info for the older mounts on how to adjust the gearbox to remove the backlash?



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