Ok, this has got me stumped. I've got my motors set up correctly, verified with a dial indicator. .100 on the DRO is .100 on the indicator. I can jog the machine just fine. 10 IPM in the X and 15 IPM in the Z. The problem is when I go to run a program in auto, it creeps and I can hear each step ticking off. Then when I go back to manual, it does the same thing. Moves incredibly slow. I have to close Mach and re-start it to get the speed back in manual. Any suggestions?
Machine is a Paxton/Patterson lathe
Gecko 251 drive boards w/1.5k ohm resistors
Vexta PH268 steppers
CNC4PC C3 Index Pulse card
P3 800 CPU running Mach3 ver 1.83.027