Discussion group for Owners and Makers of Novosibirsk TAL Astronomical Telescopes and Invited Guests Only.
NEW members are placed in moderation when they first sign up. They are allowed unrestricted posting as soon as they post their first message (as long as it's not spam).
This method works very well to keep spammers off. I usually have to bump off about 5 a month. The down side is the delay for new users and the work created for myself and TALScopes two moderators. It is also faster and less embarassing.
The arm could be motorized fairly easily, but, it would still have the limits of the tangent arm. To install a full gear drive would require serious machining
I'd like to explore the possibility of altering the tangent arm assemble with a worm ear assembly. Do you think it would work? ... From: Stephen.B.Forbes