Return to the Cloudy Nights Telescope Reviews home pageAstronomics discounts for Cloudy Nights members
· Get a Cloudy Nights T-Shirt · Submit a Review / Article

Click here if you are having trouble logging into the forums

Privacy Policy | Please read our Terms of Service | Signup and Troubleshooting FAQ | Problems? PM a Red or a Green Gu… uh, User
You are not logged in. [Login] Entrance · Main Index · Search · New user · Who's Online
FAQ · Calendar

Equipment Discussions >> Mounts
Previous thread Previous   Index   Next thread Next   Threaded Mode Threaded  

Pages: 1
rmallen
member


Reged: 09/30/08

Loc: Michigan
Atlas/Sirius Counterweight compatible with CG5?
      #4383032 - 02/13/11 10:38 AM
Edit post Edit   Reply to this post Reply   Reply to this post Quote Quick Reply: Quick Reply  

Does anyone know if the Orion Atlas/Sirius 11 lb counterweight (#09863) will fit on the CG5? I need another counterweight for my CG5 mount and the Orion counterweight is on sale right now.

Post Extras: Print Post   Remind Me!   Notify Moderator  
orlyandico
Carpal Tunnel
*****

Reged: 08/10/09

Loc: Singapore
Re: Atlas/Sirius Counterweight compatible with CG5? new [Re: rmallen]
      #4383087 - 02/13/11 10:59 AM
Edit post Edit   Reply to this post Reply   Reply to this post Quote Quick Reply: Quick Reply  

No. The Atlas uses an 18mm C/W shaft while the CG-5/Vixen GP uses a 20mm shaft.

I am using 2 Atlas weights on my Vixen but I had to have someone bore them out with a big honking drill bit.

Post Extras: Print Post   Remind Me!   Notify Moderator  
rmallen
member


Reged: 09/30/08

Loc: Michigan
Re: Atlas/Sirius Counterweight compatible with CG5? new [Re: orlyandico]
      #4383098 - 02/13/11 11:05 AM
Edit post Edit   Reply to this post Reply   Reply to this post Quote Quick Reply: Quick Reply  

OK, thanks. Guess I will have to go with the Celestron CG5 weight.

Post Extras: Print Post   Remind Me!   Notify Moderator  
ad701xx
Pooh-Bah
*****

Reged: 11/22/03

Loc: Oregon, USA
Re: Atlas/Sirius Counterweight compatible with CG5? new [Re: rmallen]
      #4383193 - 02/13/11 11:49 AM
Edit post Edit   Reply to this post Reply   Reply to this post Quote Quick Reply: Quick Reply  

The Orion Skyview Pro counterweights (#07384) are on sale also and fit the CG5. Why not order those?

Edited by ad701xx (02/13/11 11:50 AM)

Post Extras: Print Post   Remind Me!   Notify Moderator  
rmallen
member


Reged: 09/30/08

Loc: Michigan
Re: Atlas/Sirius Counterweight compatible with CG5? new [Re: ad701xx]
      #4383257 - 02/13/11 12:17 PM
Edit post Edit   Reply to this post Reply   Reply to this post Quote Quick Reply: Quick Reply  

Thanks Dave. Unfortunately, it looks like the Skyview Pro counterweights are only 7.5lb and I need a little more weight than that.

Post Extras: Print Post   Remind Me!   Notify Moderator  
ad701xx
Pooh-Bah
*****

Reged: 11/22/03

Loc: Oregon, USA
Re: Atlas/Sirius Counterweight compatible with CG5? new [Re: rmallen]
      #4383295 - 02/13/11 12:30 PM
Edit post Edit   Reply to this post Reply   Reply to this post Quote Quick Reply: Quick Reply  

Sorry, I read your post too fast and missed the 11 lbs part.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Jeff in Austin
Pooh-Bah
*****

Reged: 02/26/07

Loc: TEXAS
Re: Atlas/Sirius Counterweight compatible with CG5? new [Re: ad701xx]
      #4383649 - 02/13/11 02:48 PM
Edit post Edit   Reply to this post Reply   Reply to this post Quote Quick Reply: Quick Reply  

I'm using the Atlas and CG5 counterweights on my Atlas. One of them has a plastic sleeve, I think thats the Atlas one. The sleeve pops out easily.

Here are some diameters I measured today: CG5 shaft is .780, Atlas is .710. CG5 weights have a .815 opening, Atlas has .800 if the sleeve is popped out, .715 with the sleeve.

Post Extras: Print Post   Remind Me!   Notify Moderator  
vinnieAdministrator
Minister of Misinformation . . . Oh Yes
*****

Reged: 01/05/08

Loc: Queensland, Australia
Re: Atlas/Sirius Counterweight compatible with CG5? new [Re: Jeff in Austin]
      #4383982 - 02/13/11 05:28 PM
Edit post Edit   Reply to this post Reply   Reply to this post Quote Quick Reply: Quick Reply  

Quote:

I'm using the Atlas and CG5 counterweights on my Atlas. One of them has a plastic sleeve, I think thats the Atlas one. The sleeve pops out easily.

Here are some diameters I measured today: CG5 shaft is .780, Atlas is .710. CG5 weights have a .815 opening, Atlas has .800 if the sleeve is popped out, .715 with the sleeve.



That's correct Jeff

All Synta CWs are bored to suit the 20mm shaft which is the shaft size for CG5/EQ5/EQ3. Those sold to suit the 18mm shaft as fitted to EQ6/HEQ5 (Atlas/Sirius) simply have a plastic sleeve fitted which is easily removed.

Post Extras: Print Post   Remind Me!   Notify Moderator  
rmallen
member


Reged: 09/30/08

Loc: Michigan
Re: Atlas/Sirius Counterweight compatible with CG5? new [Re: vinnie]
      #4384276 - 02/13/11 07:43 PM
Edit post Edit   Reply to this post Reply   Reply to this post Quote Quick Reply: Quick Reply  

Thanks guys. I ended up ordering the CG5 counterweight. I found one at a reasonable price with free shipping. It was only $1.64 more than the price for the Orion weight after figuring in the shipping.

Post Extras: Print Post   Remind Me!   Notify Moderator  
RandallK
Carpal Tunnel


Reged: 11/10/06

Loc: Nanaimo, B. C. Canada
Re: Atlas/Sirius Counterweight compatible with CG5? new [Re: rmallen]
      #4388102 - 02/15/11 01:22 PM
Edit post Edit   Reply to this post Reply   Reply to this post Quote Quick Reply: Quick Reply  

I always put my finger inside the counterweight hole when when I loosen the knob to dismount or mount it so that sleeve doesn't come out. I think all the Synta weights have the same potential problem.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Mary B
Vendor - Echo Astronomy and Electronics
*****

Reged: 05/21/10

Loc: Minnesota
Re: Atlas/Sirius Counterweight compatible with CG5? new [Re: RandallK]
      #4388587 - 02/15/11 05:27 PM
Edit post Edit   Reply to this post Reply   Reply to this post Quote Quick Reply: Quick Reply  

It fits with the plastic spacer out. Just put one on my CG5.

Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1

Previous thread Previous   Index   Next thread Next   Threaded Mode Threaded  

Extra information
25 registered and 44 anonymous users are browsing this forum.

Moderator:  Bowmoreman, bilgebay, iceblaze 

Print Thread

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled


Thread views: 1016

Jump to

CN Forums Home


Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics