Primary Issue: THC does not automatically adjust to material height variations during job run.
Hardware:
CNC Router Parts Pro 4896
NEMA34
Hypertherm 45XP
Software:
Mach3
TMC3in1 v4.4.0.0
SheetCAM CNC Router Parts Plasma - OHMIC Post Processor
Problem:
Once MACH3 GCODE cycle starts, torch will come down, touch material, adjust for pierce height, fire pierce then change to cut height correctly and in turn fire and run cycle. However during the cycle run, the torch will not adjust for variation in material height. If material is higher than initial contact point, the torch will simply drag into the material. and if severe enough, knock the torch off the mount.
I am not sure if I am testing correctly, But to determine if THC is adjusting for material height variations, I turned off the torch head and ran the gcode job. During the job run, cut height never changes. In addition the THC ON/OFF never shows green or Active.
Any help would be much appreciated.
Attachment 401720
Here are my THC CFG settings:
Attachment 401716
Attachment 401718
I have pressed the THC button to manually turn on THC, However once the job starts, it will freeze on any M03, M04 or M05 codes. I looked those codes up and they have to do with spindle control. But then I reviewed my SheetCAM post process where I had selected CNC Router Parts Plasma - OHMIC and it turns out that the codes M03/M05 turn the torch on/off instead. So I edited out those M codes in the .tap file, pressed THC ON and ran the job. Since the codes were removed the job ran, however still no THC height change. The torch runs into the material just the same.
Thanks - John