Re: 16" Meade on 1200GTO


Sep 26, 2004

 


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#10805 Sep 26, 2004

Hi all



Has anyone any experience of the 16" Meade OTA mounted on the

1200GTO? Its weight (125lb) comes close to A-P recommended limit of

140.



Tom Richards

Woodridge Observatory, Melbourne, Australia.

(CBA Melbourne)

www.WoodridgeObsy.org

Carpe noctem!



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#10807 Sep 27, 2004

I have this setup. I have used it for about a year and it works

perfectly. The OTA is not 125#. That is the weight with the fork arms

it is less than 100. It was like pulling teeth to try to find the

weight because Meade actually does not know. That reported 125 is with

the fork arms. I use it with a 70mm pronto mounted as a guide scope and

I use a FLI Dream Machine camera. I have 5 18# Counterweights and 1

10#. I have the regular counterweight shaft but I will order the longer

one.



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

From: Tom Richards [mailto:tom@...]

Sent: Monday, September 27, 2004 1:07 AM

To: ap-gto@yahoogroups.com

Subject: [ap-gto] 16" Meade on 1200GTO



Hi all



Has anyone any experience of the 16" Meade OTA mounted on the

1200GTO? Its weight (125lb) comes close to A-P recommended limit of

140.



Tom Richards

Woodridge Observatory, Melbourne, Australia.

(CBA Melbourne)

www.WoodridgeObsy.org

Carpe noctem!











To UNSUBSCRIBE, or for general information on the ap-gto list

see groups.yahoo.com/group/ap-gto

Yahoo! Groups Links



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#10809 Sep 27, 2004

Tom,

I currently have a Meade 16SCT on an AP1200 mount. I also have an AP105

Traveler mounted on top of the Meade for a guide and also wide field. The mount

handles it just fine. I did have to get the longer counter weight bar, I think

it's 21", and I have three 23lb and one 14lb weight on it. The mount works just

fine. I called Christine at AP prior to doing any of this and she told me

that there would be no problem and there has not been. Just to get crazy, I tried

mounting my TEC MC250 in place of the AP Traveler and the mount still did

just fine.



Not to worry. Load that puppy up and have some fun.



Norm Lewis

NORLIN Observatory

Mount Airy, Maryland





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



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#10811 Sep 27, 2004

Dear Norm,



Wow that's quite a load. When you get to scopes of this size, the pier

is a critical component. I think the group may be interested in hearing

about that as well. How did you construct it?



Clear skies,

Marj Christen

Astro-Physics, Inc.

11250 Forest Hills Road

Rockford, IL 61115

Phone: 815-282-1513

Fax: 815-282-9847

www.astro-physics.com

Please include this e-mail with your response.



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

>From: mdweather@... [mailto:mdweather@...]

>Sent: Monday, September 27, 2004 10:47 AM

>To: ap-gto@yahoogroups.com

>Subject: Re: [ap-gto] 16" Meade on 1200GTO

>

>

>Tom,

>I currently have a Meade 16SCT on an AP1200 mount. I also have

>an AP105

>Traveler mounted on top of the Meade for a guide and also wide

>field. The mount

>handles it just fine. I did have to get the longer counter

>weight bar, I think

>it's 21", and I have three 23lb and one 14lb weight on it. The

>mount works just

>fine. I called Christine at AP prior to doing any of this and

>she told me

>that there would be no problem and there has not been. Just to

>get crazy, I tried

>mounting my TEC MC250 in place of the AP Traveler and the

>mount still did

>just fine.

>

>Not to worry. Load that puppy up and have some fun.

>

>Norm Lewis

>NORLIN Observatory

>Mount Airy, Maryland

>

>

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

>

>

>

>To UNSUBSCRIBE, or for general information on the ap-gto list

>see groups.yahoo.com/group/ap-gto

>Yahoo! Groups Links

>

>

>

>

>

>



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#10814 Sep 27, 2004

Marj,

The pier is 8" diameter, .25" wall thickness steel. The top of the pier has a

.50" flat plate, with four gussets, that is taped for the AP base for the

1200. The bottom of the pier is also .50 and is bolted to a 3.5 ton concrete

concrete base that is 6' into the ground and is 4X5' in dimension. The pier is

actually 5' long with a height of 44" inside the observatory dome. The hollow

steel pier is filled with the expandable insulating foam which cuts any steel

vibration to almost zero. It is a massive mounting for the AP1200.



Now, I want to assure you that I only mounted the TEC MC250 on a lark just to

compare my two scopes side by side. The mount normally only carries the

Meade 16" SCT and the traveler which is well within the range of the mounts

capabilities.



Both Marty and Bruce at Company Seven have seen the set up and like what I've

done. If you would like some pics. I can send some out to you.



Norm Lewis

NORLIN Observatory

Mount Airy, Maryland





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







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#10815 Sep 27, 2004

In a message dated 9/27/2004 3:43:36 PM Central Daylight Time,

mdweather@... writes:



> Both Marty and Bruce at Company Seven have seen the set up and like what

> I've

> done. If you would like some pics. I can send some out to you.

>



Post them in the files section.



Roland Christen





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



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#10816 Sep 27, 2004

Amazing! Now you have me wondering if I could, indeed, put my FSQ

on top of my 12.5 RCOS on my AP900GTO...Roland initially said no

way...but maybe he's underestimating the mounts?? Of course, I

would only put the FSQ on top when imaging with the FSQ...when

imaging thru the RC, I would remove the FSQ...what do you guys

think?...is the 900 as robust (relatively)...or is the moment arm

just too long for this to work...even at the forgiving resolution of

the FSQ?



Randy Nulman



--- In ap-gto@yahoogroups.com, chris1011@a... wrote:

> In a message dated 9/27/2004 3:43:36 PM Central Daylight Time,

> mdweather@a... writes:

>

>

> > Both Marty and Bruce at Company Seven have seen the set up and

like what

> > I've

> > done. If you would like some pics. I can send some out to you.

> >

>

> Post them in the files section.

>

> Roland Christen

>

>

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



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#10817 Sep 27, 2004

Randy,

I had a 900 GTO and I would not recommend it.



Norm





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



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#10819 Sep 27, 2004

Thanks, Norm



That's what everyone at AP said, but I figured it was worth asking

one more time in light of the ability for the 1200 to handle all the

stuff the original poster mentioned vbg>!



Randy Nulman



--- In ap-gto@yahoogroups.com, mdweather@a... wrote:

> Randy,

> I had a 900 GTO and I would not recommend it.

>

> Norm

>

>

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


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