Where can I get a Digital Encoder kit for my dob

My dob is already built with a 1/2" azuimuth shaft. The top board has a 1 3/8" hole in it, and has a ball bearing. I have a complete Lumicon Computer/Encoders/Cables which I never installed, since the center bolt was smaller than 1/2". Lumicon is now out of business, Orion no longer sells the kits (or at least advertises they have them), JIM kits are at least $150 for a bunch of bolts, and Celestron No longer has kits for dobs. Astrosystems has a pivot kit, but again, it is a 3/8" shaft (too small). I need a T-bolt for the azimuth axis which is 1/2" in diameter, and has the 1/4" hole for the encoder shafts. Does anyone know where I can get one of these bolts off the shelf without having to pay the big bucks for a machined part.
Steve

Steve,

Try Precision Mirror cells and Pivot kits. You may have to have it specially made or he may have one off the shelf. His firm is listed on the home page on Astromart.

Brien Stratton

Steve:

I am in the process of installing DSC's on my Dob and ran into the same problem as you're having. I had to make some encoder ready 1/2" bolts and "T" nut plates and have some spares. Leave your email address and I'll send you a pic with the details.

Dave.