Clutch adjustment on Nexstar 8
Posted 20 November 2012 - 09:01 AM
I have the Nexstar 8 original (Not SE or GPS). I have a Canon D60 and adapter tube so I can put the camera on the scope. Problem is, the camera is too heavy for the current clutch settings. Scope just moves down.. Is there a clutch adjustment, and if so, will it mess up my scope trying to mount it to the scope because of the weight. Anyone have any experience with adjusting the clutch?
Any insight would be great...
Posted 20 November 2012 - 09:58 AM
Adjusting the clutch may help, and there are instructions on how to do it in the sticky notes at the top of this forum.
However, for best performance on gotos and tracking, the scope really needs to be well balanced. If the camera is causing it to drift, I'd think about balancing first. You can loosen the dovetail clamp and move the scope forward on the rail to get better balance.
If you can't get it far enough forward to balance, then you'll need to add a rail extension. There's links in the sticky notes on how to do this and what your options are. You'll probably want to use the "Ron's Rail" option.
Posted 20 November 2012 - 10:27 AM
If Justin is using an original Nexstar 8, there is no Vixen rail. This 'scope is fixed to the single arm of the mount, like my Nexstar 8i once was.
There are, I think, only two alternatives here: namely to adjust the clutch a little tighter, (which if not excessive does no harm), or to fit a "Ray's Bracket".
At this time therefore, I'd be inclined to tighten the clutch to overcome the problem but ultimately, fit a "Ray's Bracket".
You can't beat it for this and the Nexstar "i" series of 'scopes !
Here for interest, if you're not aware of this accessory, Justin, is the link:
Posted 20 November 2012 - 11:07 AM
A very warm welcome to CN and to this particular forum ! :bow:
Posted 20 November 2012 - 12:28 PM
If Justin is using an original Nexstar 8, there is no Vixen rail.
Good point, Tel! I missed that in reading the original post.
Posted 20 November 2012 - 08:01 PM
Posted 20 November 2012 - 08:04 PM
Thanks for the welcome!!!
Posted 20 November 2012 - 10:44 PM
Posted 21 November 2012 - 08:42 AM
Posted 21 November 2012 - 12:47 PM
We're all suffering from a combination of scope envy (and observatory envy for those of us that have one)!
A warm welcome to the forum Justin, if I haven't welcomed you already. Sadly, Dr Altzheimer can't remember!