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Equipment Discussions >> Mounts

Pages: 1
SkipW
sage


Reged: 02/03/11

Loc: Oklahoma, USA
CG-5 Polar Scope Install - Stumped new
      #6030102 - 08/16/13 11:34 PM Attachment (14 downloads)

OK, I'm stumped. What do you have to take off a stock ASGT mount to thread the #94224 polar scope in?

Here's where I started?:

Edited by SkipW (08/16/13 11:34 PM)


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SkipW
sage


Reged: 02/03/11

Loc: Oklahoma, USA
Re: CG-5 Polar Scope Install - Stumped new [Re: SkipW]
      #6030104 - 08/16/13 11:37 PM Attachment (13 downloads)

Then remove the old-style centering screws and loosen setscrews in locking ring.

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SkipW
sage


Reged: 02/03/11

Loc: Oklahoma, USA
Re: CG-5 Polar Scope Install - Stumped new [Re: SkipW]
      #6030107 - 08/16/13 11:38 PM Attachment (13 downloads)

Unthread the locking ring and 12-h circle (what's this used for, anyhow?)

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SkipW
sage


Reged: 02/03/11

Loc: Oklahoma, USA
Re: CG-5 Polar Scope Install - Stumped new [Re: SkipW]
      #6030110 - 08/16/13 11:40 PM Attachment (10 downloads)

Loosen the thumbscrew and remove the RA circle.

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SkipW
sage


Reged: 02/03/11

Loc: Oklahoma, USA
Re: CG-5 Polar Scope Install - Stumped new [Re: SkipW]
      #6030119 - 08/16/13 11:45 PM Attachment (14 downloads)

Now what? The rear piece is apparently an older design and too small for the current polar scope, but I can't coerce it out without a lot of force.

The exposed threads are wrong, too. I presume the threads inside the collar match the exposed threads on the polar scope. Are they? What next?


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BRCoz
professor emeritus
*****

Reged: 10/21/05

Loc: Moreno Valley, CA
Re: CG-5 Polar Scope Install - Stumped new [Re: SkipW]
      #6030120 - 08/16/13 11:45 PM

Unscrew the part that had the three thumbscrews and screw the polar scope in.

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SkipW
sage


Reged: 02/03/11

Loc: Oklahoma, USA
Re: CG-5 Polar Scope Install - Stumped new [Re: SkipW]
      #6030125 - 08/16/13 11:50 PM Attachment (12 downloads)

Here's the polar scope I have. I presume the marked section fits inside the collar marked in the previous post. If so, am I missing a setscrew that holds the old tail section in place? If not, how hard should it be to remove it, or am I barking up the wrong tree?

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SkipW
sage


Reged: 02/03/11

Loc: Oklahoma, USA
Re: CG-5 Polar Scope Install - Stumped new [Re: SkipW]
      #6030128 - 08/16/13 11:51 PM

BRCoz - I tried, but it wouldn't budge. How hard should it be?

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BRCoz
professor emeritus
*****

Reged: 10/21/05

Loc: Moreno Valley, CA
Re: CG-5 Polar Scope Install - Stumped new [Re: SkipW]
      #6030138 - 08/17/13 12:00 AM

I don't remember. I put one in about 5 years ago. I just went and took my polar scope off and it looks like the collar came off before I put the polar scope in. It was all silver no black metal. There may be another setscrew hiding.

Edited by BRCoz (08/17/13 12:01 AM)


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rmollise
Postmaster
*****

Reged: 07/06/07

Re: CG-5 Polar Scope Install - Stumped new [Re: BRCoz]
      #6030472 - 08/17/13 08:48 AM

I haven't messed with one of these in years...I've never found the need for a polar scope what with AllStar and the previous Polaris align software. But if I recall, what you have to do is unscrew the collar the centering screws go it.

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Cliff Hipsher
Pooh-Bah
***

Reged: 12/31/08

Loc: North Chesterfield, VA
Re: CG-5 Polar Scope Install - Stumped new [Re: SkipW]
      #6030575 - 08/17/13 09:51 AM

Quote:

Then remove the old-style centering screws and loosen setscrews in locking ring.




STOP RIGHT HERE!!! At this point you should be able to remove the collar that had the thumb screws.

Now get the Polar scope and loosen the set screws. The tube should come out.

Insert the Optical tube into the mount. and tighten the set screws just enough to hold the scope. Now you get to boresight the scope to the RA axis....


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SkipW
sage


Reged: 02/03/11

Loc: Oklahoma, USA
CG-5 Polar Scope Install - Success! new [Re: Cliff Hipsher]
      #6030927 - 08/17/13 12:56 PM Attachment (8 downloads)

Thanks for the hints, guys. Some gentle "persuasion" with a strap wrench did the trick. I wanted to avoid using that that to avoid forcing something that wasn't gonna go, but the consensus was that it should just unscrew, and there were no setscrews. The wrench gives enough grip without ruining anything and leverage so it could be turned with more authority than I was willing to try before. It was snugged up pretty well but removed quite easily once started. It turns out that the "collar" and endpiece annotated in the earlier picture are actually one piece.

Uncle Rod - yes, I use and like ASPA, too, but I like to try new things. When one came available used, I figured I'd give it a try.


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SkipW
sage


Reged: 02/03/11

Loc: Oklahoma, USA
Re: CG-5 Polar Scope Install - Success! [Re: SkipW]
      #6030930 - 08/17/13 12:58 PM Attachment (10 downloads)

The threads inside the axis mate with the polar scope. Replace the RA circle and thread the polar scope in. Done.

Now to get it centered and wait for dark.


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