#CNCPlasma
#HFInterference
#Mach3
#DIYCNCMill
#3018CNC
#Fusion360
#Tutorials

In this video, I summarized quickly all the tricks and tips that I did to make my cheap plasma cutter cut50P (P for “pilot arc”) works perfectly with my home-built CNC plasma cutting table.
– 1st tip: Use bigger torch that was designed for higher current. That way the nozzle and the electrode will last longer and the cut quality will be more consistent.
– 2nd tip: Connect the trigger wire directly from the connector on the plasma cutter to the relay and keep it far away from the pilot arc wire and the the air hose to avoid HF noises and interference.
– 3rd tip: If your arc is sputtering, the plasma cutter doesn’t cut continuously, you will have to check inside the plasma cutter and adjust the spark gap. Keep it at reasonable distance (0.8mm following the manufacture manual).
– 4th tip: use 220V instead of 110V. 220V will make the arc more stable and also the plasma cutter will have higher duty cycle when cutting at high amperage.

source