TOS-KURIM CNC Upgrade

[Muzzer]

You can presumably set the steps per rev in the motor driver to the wrong value. If you have 1:1 ratio in your machine it keeps the numbers simple (do you have a belt drive, I forget). You may also be able to set the pulses per rev or pulses per mm in your controller.

Good to cut metal but now investigate what is causing this issue. Is it (hopefully) a consistent % scaling error or a random (loss of pulses) error?

If it's a consistent scaling error, you should be able to fix it by correcting the settings in the drive via the software. I don't know Mach3 but there may also be some settings in there. If you swap over the X and Y signals, you will see where the scaling error lies - does it stay with the drive or within Mach3?