Questions on using a moving gantry style mini-mill...

[JAZZCNC]

Sounds good, an offset will do what i need, i have never checked if the work position remains after a home, something else to check.

Yes it does offsets are Modal so will only change if you set a different offset. G54 being default so if you don't save the Fixture offset when closing Mach3 it will always load the previous G54 offset which was saved.

Regards Homing and Stop. It actually goes further than that regards homing. If you have stopped the G-code with feedhold and in controlled manner then if you for any reason power down the drives, which a safe E-stop system should. Then you should home the machine when they power back up.?
This is because they often jump to next full Step so your then out of positon to where mach thinks it is.

Then if your trying to get back to position use RFH. I use RFH all the time it's a great tools when shit hits the Fan.!!!