Also what software are you using for creating the pcb then the isolation
paths?
I'm creating the basic schematic & PCB layout with Kicad. From there, I
use pcb2gcode to translate the Gerber files to gcode. I'm using OpenCNCPilot
to do the auto leveling and drive the (Woodpecker) Grbl 1.1f board.
BTW, I was getting some really strange results until I placed ferrite chokes
on all of the stepper motors as well as the USB cable connecting the PC to
Woodpecker board.
- Mark