I have a very simple little T8 CNC without endstops that I use for PCB's. After a failed drill job, the position of the machine is lost and I would like to resume the job.
The machine is running GRBL 0.9 and I'm using UGS for sending the gcode.
So I would like to be able to jog the machine to match a known hole that's already been drilled and then say "hey, you're now at position x, y", but I can't seem to find either a gcode or function in UGS to do this. Is there any such gcode?
My workaround is currently to jog to a known hole, reset to zero, then send gcode to move to the inversion of that known hole and set zero again. Is there any smarter way?