Telescope Reviews: Pier mounting a CGEM

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Equipment Discussions >> Mounts

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jbattleson
Happily Retired

Reged: 03/02/09

Loc: Nebraska

Pier mounting a CGEM new

#3057586 - 04/21/09 03:27 PM

I am getting ready to mount my CGEM 1100 on a pier. Does anyone have a drawing of the bolt pattern to attach it to the pier top plate?
I hate to take the scope down to get the info. but will do that if no one has a print.
John

Post Extras:

DrBuck
professor emeritus

Reged: 12/10/08

Loc: Susanville, No. Calif.

Re: Pier mounting a CGEM new

[Re: jbattleson]
#3061907 - 04/23/09 12:02 PM

I would call Celestron technical support. They should be able to get you a bolt pattern!!

Post Extras:

Strgazr27

Reged: 10/04/04

Loc: StonyHill Observatory

Re: Pier mounting a CGEM new

[Re: DrBuck]
#3061973 - 04/23/09 12:26 PM

John,

The bolt pattern is the same as the Atlas (At least should be) 1 Center bolt and the bolt for the Az pin. A quick google search should turn up what your looking for.

This may help.

This

I think this is what you want

Hope those help.

Post Extras:

jbattleson
Happily Retired

Reged: 03/02/09

Loc: Nebraska

Re: Pier mounting a CGEM new

[Re: DrBuck]
#3062763 - 04/23/09 06:10 PM

I call Celestron last week and they told me none were available. They will email one to me if they can find one.
So far nothing.

John

Post Extras:

jbattleson
Happily Retired

Reged: 03/02/09

Loc: Nebraska

Re: Pier mounting a CGEM new

[Re: Strgazr27]
#3062775 - 04/23/09 06:18 PM

Thanks for the link. I don't think that will work.
The CGEM has 1 bolt in middle but there are 2 pilots
to locate. One is 65MM dia. and the other is 30MM.
I have a drawing now but thanks anyway for your help.
If anyone would like the drawing I could email to them.

John

Post Extras:

jbattleson
Happily Retired

Reged: 03/02/09

Loc: Nebraska

Re: Pier mounting a CGEM new

[Re: jbattleson]
#3066877 - 04/25/09 07:29 PM Attachment (86 downloads)

I have attached a preliminary drawing of my pier.
Feedback and suggestions are welcome.
John

Post Extras:

Strgazr27

Reged: 10/04/04

Loc: StonyHill Observatory

Re: Pier mounting a CGEM new

[Re: jbattleson]
#3067631 - 04/26/09 07:49 AM

Quote:

Thanks for the link. I don't think that will work.
The CGEM has 1 bolt in middle but there are 2 pilots
to locate. One is 65MM dia. and the other is 30MM.
I have a drawing now but thanks anyway for your help.
If anyone would like the drawing I could email to them.

John

The Atlas uses the same pattern. They are 2 different locations for the Azimuth pin. These simply allow you to position North either inline with a tripod leg or between 2 tripod legs. we set up 3 of these at NEAF.

Otherwise the pier looks like it will be VERY solid. You don't list a dimension for the distance between the 2 plates. Just make sure you leave enough to insert and remove the center bolt without having to remove the whole top plate. I speak from experience

Post Extras:

jbattleson
Happily Retired

Reged: 03/02/09

Loc: Nebraska

Re: Pier mounting a CGEM [Re: Strgazr27]
#3068015 - 04/26/09 11:13 AM

Thanks for the feedback.
I was going to leave 2 1/2 to 3 inches between the
plates on top. I can change that by using longer threaded rod
so shouldn't be a problem.
John

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