Gratings everyone hope you all have a lovely xmas and clear sky.... unless you want a white xmas
So, my question to the anyone who have an opinion about German Equatorial Mount design is: 1- polar-alignment mechanism
2- clutch design
3- Worm-wheel location
1: Looking at Mr Byers wonderful EQ mounts ... most has a very simple, but effective polar alignment push-pull bolts for Alt and a push-screw for the Az for the pier.... I guess.
Compare this to a AP or other EQ mount designed to be flexible re different locations, it is very 'robust' isn't it??
Simplicity mean very stable?... so for my new (yet to be finished) EQ mount in a permanent Obs, not need to be 'fine' adjusted' all the time. Just get it right 'once' and lock the bolts.
So instead make the mount overly complex, with more chance for flexing... just follow Mr Byers.... shaft angle set to desired Alt and the bolts will adj +/- 5deg? Opinion(s) ??
2: I have two of Mr Byers' Worm-gear for the project. RA 11" and the DEC 7" .... usual clutch. It is functional, but not practical for a quick balance adjustment (IMHO). Would a 'Capstan's-wheel' arrangement better?
A little bit of machining on the hub will do it...
3: Most modern Worm-gears are located north of bearings, with overhang design to pass Meridian tracking. I guess to reduce torsion-flex on shaft.
My RA will be 3" OD .... DEC 2" Mr Byers use the RA Worm-gear in mid-bearing. I want overhung Dec to track pass Meridian. Should the Worm-wheel located north of bearings? Your opinion?
Thank you all for any help,
Edited by Space99, 19 December 2018 - 01:08 AM.