Hi,
I salvaged a few steppers, helical gears from printers and fax machines after reading threads here, and wanted a control circuit for a 6 wire stepper.
one of these from a fax machine happens to have datasheets on the manufacturers website, and from that, its a 1.8deg stepper, 2A max, 50-850mNm torque. It has 6 wires. Not sure if it is unipolar or bipolar.
I've seen posts using the bartel system, but i don't want to use a laptop yet.
Just wanted to have three switches or options - slew, forward/reverse, track using micro stepping, and possibly micro stepping before tracking.
I've built a fork mount for my 8" Bintel Newtonian, so my prime objective is just tracking on the RA axis.
any suggestions, ideas?
would a servo be more appropriate if requirement is just tracking, or a PWM based speed controller for a normal DC motor.
I've seen the circuits from oatleyelectronics, but found this site to have better kits
http://www.ozitronics.com/