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General Mach Discussion / Mach3 wont fire torch on plasma table

« on: March 22, 2018, 03:51:31 PM »

We have a Plasma table from Plasmaroute CNC that has stopped firing the arc.  The Software is Sheetcam and Mach3.  The included hardware is a Thermal Dynamics 120A, plasmaoute's motion control box, and their PR301 (THC301) for our torch height control.  Everything was normal until about a week ago when Mach3 started making our computer crash upon opening the program.  We cleared a few new windows updates, then reinstalled Mach3 and Sheetcam.  Mach3 seems to act and read all the GCODE normal until it gets to an M03 or M05.  It pauses like it should, it just wont try to start the arc.  if i let the program run and i manually turn the torch on and off in mach3 it cuts just fine.  what could be the issue?  at this point i cant get ahold of plasmaroute and have ran out of ideas.  Thanks for any input