I have a simple application for a stepper as a wire feeder(of course). I
have a 34 frame stepper with a 12:1 gear box and a Axidyne (tolomatic) 80v
5A microstepper drive. All I need it to do is run the motor 5 revolutions
(5/12ths rev on the gear box) whenever a limit switch is hit. That will be
about 100 times per minute.

What do I do that's reliable and cheap?