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Thanks Geoff that helps alot. I have a speed issue. I keep creeping ahead of the target, I just can't nail why. I tried reducing voltage from 9vdc to 5vdc to the step motor, I soon discovered stepper motors don't change speed with voltage. The gears I have are 60 & 24 teeth 24x60=1440 minute (24 hours) but the speed on the RA is closer to 2880 minutes make 1hr tracking passing in 30 minutes.
I think I need 48x60=2880 (48 hours) to correct the motor.
The motor is too fast.
Last edited by Pinwheel; 31-03-2011 at 03:44 PM.
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