Topics

1

General Mach Discussion / Slave axis moving at different speed when homing

« on: February 04, 2019, 07:10:17 PM »

I have a gantry CNC router that I've been using successfully for several months. The other day I noticed that when I hit home all axis, the 2 gantry motors seem to be moving at different speeds during homing. If they are more than a couple inches from the home switch, one of them will jump a pinion gear every few seconds. Not sure what is causing this. I thought each motor was supposed to get the same step/direction pulses as the master axis. I haven't noticed this before but I don't know if it is because I never tried to home the y axis very far from the switch or if there is something new going on.

Also, is there a way to edit the homing script? I can't seem to find where that lives. I would like to adjust the amount each axis backs up off the switch after activating it.

Thanks