ELECTRONICS

Board - Mel Bartels

modified with Bob Norgard's protection circuit

Power - 22v  -  SOM switching power supply with 22v  12v  5v outputs  22 volts to the motors, 5 volts to the logic

MOTORS

 200 step (1.8 deg) 40 ohm 12v steppers

Now replaced with Oriental Motors 400 step 5.7v steppers - 12 volts to the motors