my problem is that i can step in one direction only (Tabing in mack3 demo) try to tab in the other dir and nothing.
Things that i have done:
Swapped motors
swapped drives
swapped step/dir pins on lpt
Now I thinks its either the drives or the software or the Mobo.
Things i am going to do.
swap mobo on pc
swap power supply 5v and 28v
reverse direction of stepper wiring at stepper.
http://www.cnczone.com/forums/newrep...reply&p=179720
This all came about after hitting the home in mack3 mill. it went home and then would not come out to play.
any ideas on diag or soultion pls.
Paul