Re: [ap-gto] Re: AP1100 Questions


Nov 17, 2013

 


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#42378 Nov 17, 2013

I'm expecting my 1100 within the next few weeks and have a couple of questions while I prepare: - I am planning on changing power connection to power poles. Is the power cable supplied coaxial or zip cord?- What size pelican cases would work for individually packing the RA and DEC assemblies? I would like to include all included accessories as well? Are the overall dimensions similar to the 900 and if so what are 900 owners using?

Thanks for all your help and look forward to joining A-P owners!

Paul Lavoie



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#42408 Nov 20, 2013

The power cord has a black and white wire in an outer jacket. I've converted them to power poles without issue. Sorry I can't help with the case sizes. 

---In ap-gto@yahoogroups.com, plav1959@...> wrote:

I'm expecting my 1100 within the next few weeks and have a couple of questions while I prepare: - I am planning on changing power connection to power poles. Is the power cable supplied coaxial or zip cord?- What size pelican cases would work for individually packing the RA and DEC assemblies? I would like to include all included accessories as well? Are the overall dimensions similar to the 900 and if so what are 900 owners using?

Thanks for all your help and look forward to joining A-P owners!

Paul Lavoie



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#42912 Jan 14, 2014

1) there is no on/off switch. You apply power, and it's ready to go. 2) if you have set the keypad to Autostart YES, then all you do is turn on power and the mount is ready to go to your favorite objects. Nothing else to do. No un-park, no intitialization, no sync, etc etc. Really the very easiest way to use the mount. 3) when you are finished, either park the mount in one of the 3 preset positions, or simply point the scope somewhere convenient, or leave it where it is at the present time and turn off the power supply. It will remember where it is at all times and will be ready for you next night or next month. 4) if you go to your first object (or any object during the night) and it is off a bit, simply center the object with the buttons and bring up the Rcal menu (bottom right hand keypad button) and press 9 - Rcal. Rolando

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

From: Paul Maxson buzzard51@...>

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

Sent: Tue, Jan 14, 2014 7:49 pm

Subject: [ap-gto] Two easy (I hope) AP1100 questions.





I have my new AP1100 mount about 80% setup, just need to put on thecounterweight shaft, weights and dovetail. I can really tell the qualityin this mount...Wow!!

My questions:

1. Is there an On/Off switch for the mount?

2. Almost 100% of what I do it planetary imaging. The mount will have aC14 on it. After I do the initial one time setup, then to get going for atypical evening session, would my steps basically be:

a. Turn on the mountb. Goto planet>

when donec. park the mountd. turn off the scope

or something close to that.

I'm hoping I don't have to do star align each time I use the scope. Thesetup stays in one spot in my back yard. I guess I'm also hoping thepointing accuracy will put the planet in my FOV as well.

Thanks!!Paul

Those who say it can't be done should stay out of the way of those whoare doing it.



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#52468 May 12, 2016

Hello all,

While I wait for the mount to ship (as patiently as I can) I am starting to look into what the alignment process is like. Currently I use Celestron mounts, so I am very used to the 2+4 then All Star Polar Align. I know it will be different with this mount,can anyone aid in translating what that difference will be, with RAPAS?

Do I just go out, polar align with RAPAS and the App, then go to town?

Thanks,Bill



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#52470 May 12, 2016

Bill,  I have a smaller Mach1, but what you describe is exactly what I do.  Level the tripod/mount, fire up the PolarAlign APP, see where to put Polaris in the RAPAS finder, do it, remove the RAPAS, do a GOTO, center the object, Sync and I’m off to the races.  I remove the RAPAS after polar alignment because my camera cables like to catch on it.  Woody  From: ap-gto@yahoogroups.com [mailto:ap-gto@yahoogroups.com] Sent: Thursday, May 12, 2016 1:54 PMTo: ap-gto@yahoogroups.comSubject: [ap-gto] AP1100 Questions



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#52471 May 12, 2016

Do I just go out, polar align with RAPAS and the App, then go to town?

 Basically, yes, that's all you do. No 2 star, 3 star or any star alignment necessary. Rolando -----Original Message-----

From: Bill Long bill@... [ap-gto] ap-gto@yahoogroups.com>

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

Sent: Thu, May 12, 2016 3:55 pm

Subject: [ap-gto] AP1100 Questions





Hello all,

While I wait for the mount to ship (as patiently as I can) I am starting to look into what the alignment process is like. Currently I use Celestron mounts, so I am very used to the 2+4 then All Star Polar Align. I know it will be different with this mount,can anyone aid in translating what that difference will be, with RAPAS?

Do I just go out, polar align with RAPAS and the App, then go to town?

Thanks,Bill



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#52472 May 12, 2016

The current Celestron mounts do additional stars as part of their alignment process so they can attempt to compensate for various mechanical limitations with their mount and your OTA. The additional stars help their electronics to measure backlash and flexure of their mount and flexure in your OTA. Also to measure and compensate for any orthogonality error between your optical axis and the DEC axis.Your upcoming AP mount won't have any of the mechanical limitations that a Celestron mount would have but you could still suffer from OTA flexure or orthogonality error.. If those two things are good then all you will need is a polar alignment and a single star Calibration and you will be good to go.. If you have flexure or ortho issues, those can usually be fixed with a bit of effort.Sent via Android on a Samsung Galaxy Note 3



Christopher Erickson

Consulting Engineer

Summit Kinetics

Waikoloa, Hi 96738On May 12, 2016 10:55 AM, "Bill Long bill@... [ap-gto]" ap-gto@yahoogroups.com> wrote:

Hello all,

While I wait for the mount to ship (as patiently.as I can) I am starting to look into what the alignment process is like. Currently I use Celestron mounts, so I am very.used to the 2+4 then All Star Polar Align. I know it will be different with this mount,can anyone aid in translating what that difference will be, with RAPAS?

Do I just go out, polar align with RAPAS and the App, then go to town?

Thanks,Bill







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#52473 May 12, 2016

Hi Bill,

Congrats on getting A-P1100GTO mount. I have the same mount and I love it.

Before first using RAPAS, be aware that you must first perform precision polar alignment using different polar alignment tools like PEMPro, A-P Quick Drift Alignment (QDA) using finderscope or your favorite method. Once precision polar alignment is done, then you may need to mechanically calibrate RAPAS by adjusting three push-pull screws and match Polaris inside RAPAS with software app. From then on, you can use RAPAS and should get accurate polar alignment every time.

You may use RAPAS that came from the factory and not bother calibrating it and may get reasonably good GoTos but it may not be as accurate as using calibrated RAPAS.

Peter

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

Hello all,

While I wait for the mount to ship (as patiently as I can) I am starting to look into what the alignment process is like. Currently I use Celestron mounts, so I am very used to the 2+4 then All Star Polar Align. I know it will be different with this mount,can anyone aid in translating what that difference will be, with RAPAS?

Do I just go out, polar align with RAPAS and the App, then go to town?

Thanks,Bill



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#52474 May 12, 2016

I will be putting a Takahashi TOA-130F on it, so I assume I will not have any flexure issues. Orthogonality shouldn't be an issue either, but I would be curious what I would be looking for in order to verify both?











From: ap-gto@yahoogroups.com ap-gto@yahoogroups.com> on behalf of Christopher Erickson christopher.k.erickson@... [ap-gto] ap-gto@yahoogroups.com>

Sent: Thursday, May 12, 2016 2:45 PM

To: ap-gto@yahoogroups.com

Subject: Re: [ap-gto] AP1100 Questions 



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#52475 May 12, 2016

I would be calibrating it on a deck, so which of these methods would be best?













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

Sent: Thursday, May 12, 2016 3:28 PM

To: ap-gto@yahoogroups.com

Subject: [ap-gto] Re: AP1100 Questions 



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#52476 May 12, 2016

Orthogonality error can come from the dovetail bracket, dovetailplate, OTA ring(s), ring felt, focuser, etc.  The best way to tell quicklyif you have any ortho error is to have a good polar alignment and then calibrateon a star on one side of the meridian and then GOTO a star on theother side.  If the second star is precisely centered then you haveminimal ortho error.  If it isn't centered then you may have ortho error todeal with.  Typically I install aluminum shims (cut from the sides ofsoda cans) between the dovetail bar and the base of one OTA ring or theother to minimize or eliminate ortho error.   Since ortho error is between the DEC axis and the optical axis (notthe OTA tube axis) it is important to carefully collimate your OTA beforeevaluating and attempting to correct ortho error.  Not such a big problemwith refractors but it is very important for reflectors. Evaluating ortho error is described in the AP manuals. Basically, one degree of ortho error between the DEC axis and the optical axiswill result in two degrees of pointing error when flipping themeridian. I hope this helps.  Christopher EricksonConsulting EngineerSummitKineticsWaikoloa, HI 96738www.summitkinetics.com

 



From: ap-gto@yahoogroups.com[mailto:ap-gto@yahoogroups.com] Sent: Thursday, May 12, 2016 12:29PMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] AP1100Questions



I will be putting a Takahashi TOA-130F on it, so I assume I will not have anyflexure issues. Orthogonality shouldn't be an issue either, but I would becurious what I would be looking for in order to verifyboth?







From: ap-gto@yahoogroups.comap-gto@yahoogroups.com> on behalf of Christopher Ericksonchristopher.k.erickson@... [ap-gto]ap-gto@yahoogroups.com>Sent: Thursday, May 12, 2016 2:45PMTo: ap-gto@yahoogroups.comSubject: Re: [ap-gto] AP1100Questions 



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#52478 May 12, 2016

On a deck? It sounds like you are going to use it for visual because imaging on a deck may not be stable enough. If that's the case, I wouldn't go OCD on precise polar alignment.

If you are going to image, I would try polar alignment using A-P Quick Star Drift Alignment (QSDA) with finderscope. It does not require a computer if you are going to include Hand Controller option with A-P1100GTO mount. It can be done with a computer and ASCOM driver but it would be easier to use a Hand Controller.

See QSDA instructions on page 24 thru 27 at:

www.astro-physics.com/tech_support/mounts/Keypad%20v4.19.2%20with%20Cover%202016-4-20.pdf

I have never used PEMPro but that's another good option for polar alignment assuming you already have other capture software like Maxim DL (costs a whopping $500) or video camera.

Peter

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

I would be calibrating it on a deck, so which of these methods would be best?













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

Sent: Thursday, May 12, 2016 3:28 PM

To: ap-gto@yahoogroups.com

Subject: [ap-gto] Re: AP1100 Questions 



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#52481 May 13, 2016

Very cool!!! Then you are set. You cannot go wrong imaging with A-P1100GTO or any other A-P mounts. Once you get the hang of getting good polar alignment which should be pretty easy, then everything else will also be pretty easy.

Peter

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



I've done many a successful imaging session from my deck. I also plan to take her out to a dark site in my SUV. :D













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

Sent: Thursday, May 12, 2016 10:56 PM

To: ap-gto@yahoogroups.com

Subject: Re: [ap-gto] Re: AP1100 Questions 







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