Platform Stepper Motors.Posted By Jim Schneringer |
Thinking of building a platform for my Hardin 12" Dob.
I figured out the dimensions from the yahoo group excel sheet.
I'd like to do a drive system like on the Round Table platforms. I have been cruising ebay for steppers and I'm just not sure what I'm looking for. Seems something around 12V with >120oz torque, 1.8 degrees steps.
Then what do I do for gearing?
I figure my north board is close to a 26" radius for my 40deg latitude and the scope weighs around 80lbs.
Any advice would be welcome.
I figured out the dimensions from the yahoo group excel sheet.
I'd like to do a drive system like on the Round Table platforms. I have been cruising ebay for steppers and I'm just not sure what I'm looking for. Seems something around 12V with >120oz torque, 1.8 degrees steps.
Then what do I do for gearing?
I figure my north board is close to a 26" radius for my 40deg latitude and the scope weighs around 80lbs.
Any advice would be welcome.