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

Equipment Discussions >> Mounts

Pages: 1
Space99
sage


Reged: 08/14/08

DEC worm wheel location?
      #4586300 - 05/17/11 06:05 AM

Hi everyone,
my question is, way the pro EQ-mounts (AP, MI, PM) has the
DEC worm wheel at the 'north' of the shaft?
Logic dictate it should be on the 'south' to reduce counter-weight.
What am I missing?
I'm in the agony to decide between
Germ vs Fork for my ATM EQ mount, and if it's a Germ. then
where the worm should be located.

Cheers,
Mick.


Post Extras: Print Post   Remind Me!   Notify Moderator  
jmiele
Patron Saint?
*****

Reged: 12/04/10

Re: DEC worm wheel location? new [Re: Space99]
      #4586447 - 05/17/11 09:04 AM

Forks are def easier to view from. As to locating the DEC worm on a GEM, I'm going to have to side with the engineers I'm thinking if it belonged in the south, Roland and the rest would have it there.

Joe


Post Extras: Print Post   Remind Me!   Notify Moderator  
Eddgie
Postmaster
*****

Reged: 02/01/06

Re: DEC worm wheel location? new [Re: Space99]
      #4587834 - 05/17/11 11:00 PM

The reason that the dec worm is usually located at the top of the housing is because to put it under the dec housing would require that the RA shaft extend out further so the wheel dec worm could clear the RA housing.

Most mounts made these days put the Dec worm wheel at the top of the dec housing.


Post Extras: Print Post   Remind Me!   Notify Moderator  
Space99
sage


Reged: 08/14/08

Re: DEC worm wheel location? new [Re: Eddgie]
      #4588070 - 05/18/11 04:44 AM

You right Eddgie.

Thanks guys,

Mick.


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

Reged: 10/01/08

Loc: Upstate NY
Re: DEC worm wheel location? new [Re: Space99]
      #4589654 - 05/18/11 10:15 PM

I've read that having the worm wheel closer to the tube is a better design. Something to do with torsional effect along the axle. But putting the gears at the lower end was common in the day. I've seen problems with the clutching mechanisms stressing the axle keepers as the tension wants to pull the whole thing out the bottom.

Meade made some EQ (MTS) forks that didn't sell all that well but were a nice concept.


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


Extra information
24 registered and 53 anonymous users are browsing this forum.

Moderator:  Dave M, richard7, bilgebay, iceblaze 

Print Thread

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


Thread views: 521

Jump to

CN Forums Home


Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics