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The scope is finally finished. see pictures below.
Currently my telescope is a 6" f4 Newtonian reflector. I used a 2" diameter helical focuser from University Optics, and it is the only thing I have purchased there I have been unhappy with. Way to much play to get good colimation. The whole thing was assembled in a piece of 8" diameter PVC tubing that is about 32" long. There is a factory that makes PVC near my home and they gave me some scrap pieces to use. The primary mirror holder is from http://www.universityoptics.com. The PVC tubing is a little heavy but is very durable. So far it looks promising. I was able to see the rings of Saturn and the Great Red Spot on Jupiter in detail, although there was a slight halo around most objects at high magnification. I haven't even perfectly collimated the scope yet. f4 optics in a 6" mirror are proving to be extremely difficult for me to get collimated perfectly. See Collimating Newtonian Optics for more details. I am also working on mounting my QuickCam to the scope. Check out DIY CCD Imaging for some ideas.
The next phase of my project will be to motorize the scope. I plan on using stepper motors controlled through a serial or parallel interface. I am still researching my options. Several people have already done it using the parallel port and have even written software to drive the scope. I
I have been working on a gear reduction system for a while. I wanted something that was accurate, and cheap. Unfortunately those 2 words don't get along together when it comes to Telescopes. I found an article by Tom Krajci describing worm gears made with wood and JB Weld. Here is the link http://zebu.uoregon.edu/~mbartels/altaz/homemade_gears.html. I already made one with a ratio of 1000:1 and it should work very nicely. I will post pictures soon.