Plasma floating head...

[JAZZCNC]

I have had a look inside the post code for the mach plasma with THC option in sheetcam and it has the code for G31 seeking so it just needs some options altering and the floating head switch wired to the probe input I think.

basically all I want is to have the torch seek the metal at the start of each cut then raise to pierce height and start.

i also want to retain the top limit switch for the "home all" feature in mach.

Ok that's easy enough but if you want DRO's Zeroing etc then it will need to go into a Macro file because you'll need some VB code to do it and Mach doesn't support VB directly in the G-code file.

Regards "home all" then Mach treats homing separate and just watches the assigned pin, by that I mean it will not watch limits etc unless specificly told to do so. It will also ignore the Probe input while homing but that shouldn't be a problem.
Also by default Mach homes each Axis individual one at a time when you press "Ref All Home" they won't all go at same time. If you want it to do this you have to alter the Homing script.