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shiner
super member


Reged: 11/04/11

Loc: England
How to mount small refactor (ED80) on top of CPC??
      #5491953 - 10/27/12 05:20 PM

Not sure the best way to do this guys....?
I could get a ADM Vixen bar to mount first onto the CPC OTA. And then put some sort of Vixen saddle onto that bar that will mate with the Vixen bar on the scope rings on the ED80?

How have you guys gone about doing this please?
Steve


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junomike
Carpal Tunnel
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Reged: 09/07/09

Loc: Ontario
Re: How to mount small refactor (ED80) on top of CPC?? new [Re: shiner]
      #5491989 - 10/27/12 05:39 PM Attachment (34 downloads)

Quote:

I could get a ADM Vixen bar to mount first onto the CPC OTA. And then put some sort of Vixen saddle onto that bar that will mate with the Vixen bar on the scope rings on the ED80?




That's exactly what I did! Mind you my two scopes aren't aligned 100%, but seeing that the C11 yields approx 1 and my 120ST up to 4.5 I see now Issue for visual.

Mike


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junomike
Carpal Tunnel
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Reged: 09/07/09

Loc: Ontario
Re: How to mount small refactor (ED80) on top of CPC?? new [Re: junomike]
      #5491991 - 10/27/12 05:42 PM Attachment (36 downloads)

Another shot without the Piggyback scope

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junomike
Carpal Tunnel
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Reged: 09/07/09

Loc: Ontario
Re: How to mount small refactor (ED80) on top of CPC?? new [Re: junomike]
      #5491994 - 10/27/12 05:43 PM Attachment (29 downloads)

pic

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MikeBOKC
Post Laureate
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Reged: 05/10/10

Loc: Oklahoma City, OK
Re: How to mount small refactor (ED80) on top of CPC?? new [Re: junomike]
      #5492004 - 10/27/12 05:52 PM

My refractor is in rings mounted on a 7 inch Vixen-style dovetail. The dovetail snugs into a Vizen style adaptor which is screwed upside down onto this, which in turn snugs onto the Losmandy-style top rail:

https://www.astronomics.com/astro-tech-dovetail-accessory-adapter-losmandy-d-plate-green_p17369.aspx

Alignment witn the scope is easily adjusted by tipping the refractor/ring/dovetail assembly while tightening it in place. I can also skide the adaptor forward or backward for balance.


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A. Viegas
Pooh-Bah
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Reged: 03/05/12

Loc: New York City/ CT
Re: How to mount small refactor (ED80) on top of CPC?? new [Re: shiner]
      #5492164 - 10/27/12 07:44 PM

Hi Steve-

I have a C80ED mounted on my CPC1100 using scopestuff rails and 4.6" rings. Works great. see here: Scopestuff_rings

Good thing about the rings is that they are adjustable using the thumbscrews so its relatively easy to mostly accurately center the refractor to the CPC1100 scope.

Cheers,

Al


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antimorris
Vendor (Enterprise Astronomy)


Reged: 08/16/09

Loc: Clayton, NC
Re: How to mount small refactor (ED80) on top of CPC?? new [Re: A. Viegas]
      #5492634 - 10/28/12 04:39 AM

I use ADM rails and rings to mount my EON 80ED on my CPC800. They work great and I have the two scopes aligned to each other as well.



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shiner
super member


Reged: 11/04/11

Loc: England
Re: How to mount small refactor (ED80) on top of CPC?? new [Re: antimorris]
      #5493180 - 10/28/12 02:26 PM

Thanks everyone.
Mike, what screws did you use to attach the saddle to the bar please? They'd have to be countersunk to allow the bar of the ED80 to fit right?
Thanks, Steve


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junomike
Carpal Tunnel
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Reged: 09/07/09

Loc: Ontario
Re: How to mount small refactor (ED80) on top of CPC?? new [Re: shiner]
      #5493213 - 10/28/12 03:04 PM Attachment (22 downloads)

Steve, I used a coutersunk screw for the reason you state (to allow the Vixen Dovetail to fit properly).

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junomike
Carpal Tunnel
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Reged: 09/07/09

Loc: Ontario
Re: How to mount small refactor (ED80) on top of CPC?? new [Re: junomike]
      #5493227 - 10/28/12 03:15 PM Attachment (19 downloads)

The brass screw threaded into the previously drilled and tapped Dovetail. I also used a locknut (plastic insert) on the underside for added security (not shown in pic).
I found the screw and nut at my local Home Depot. Make sure you have the Dovetail and Saddle available as you'll need to check that the screw is long enough to allow for the bolt to be threaded (at least 4 turns), but short enough not to interfere with the OTA. There's about 0.5" between the bottom of my Dovetail and OTA.

Mike


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shiner
super member


Reged: 11/04/11

Loc: England
Re: How to mount small refactor (ED80) on top of CPC?? new [Re: junomike]
      #5493277 - 10/28/12 03:48 PM

Thanks Mike for your help
Steve


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