I have CNC plasma cutting working reliably and fluid with LB.
My CNC system consists of:
- Mill Right Mega V Plasma/Router (it’s controller is Arduino Mega 256 chip running GRBL V1.1h) https://millrightcnc.com/
- PrimeWeld Cut60 Plasma cutter (comes std with CNC port) Dual Voltage 110v/220v 60-Amp Plasma Cutter | PrimeWeld
- Tecmo PTM60 machine torch https://www.georgesplasmacuttershop.com/
- Proma SD THC https://www.proma-elektronika.com/download/PDF/thcsd_en.pdf
- VIM editor custom macro to post-process the saved gcode from LB, it simply replaces M3 & M5 commands with gcode blocks that performs per-cut torch touchoff and retract commands for accurate PH, ITH, Pierce delay, and at end of cut THC switch delay and torch retract. VIM editor: download : vim online The custom macro: plasmapp.vim.txt (1.2 KB)
See this post for full details: Update on plasma use case success, albeit post processing gcode
I’m happy to answer questions and offer assistance for anyone interested in replicating the process.
Cheers,
Lou