Hello all, another first timer here. I’ve dug through historical posts and haven’t found the answer.
Setup: Crossfire Pro with RazerCut45, THC and return to home switches, two inline air driers, ~5CFM air flow. Dell 5300 running FireControl. G-code generated from Fusion 360.
Problem: G-code runs, torch fires up, but does not pierce, plasma power steadily decreases through cut and turns off. What’s odd, is that I’m using the same G code I was able to cut ~30 previous parts without issue. I’m cutting 11g mild steel. Previously with 65IPM, 40 amps, I got decent cuts with limited dross. Ground is directly to the 11g sheet.
THC testing passes. Voltages are within parameter.
I ran the code with the computer on battery; no change in failed cut.
G Code Sample:
(v1.6-af)
G90 G94
G17
G20
H0
(2D Profile20)
G0 X-0.005 Y2.5975
G92 Z0.
G38.2 Z-5. F100.
G38.4 Z0.5 F20.
G92 Z0.
G0 Z0.04 (IHS Springback + Backlash)
G92 Z0.
G0 Z0.15 (Pierce Height)
M3
G4 P0.5
G0 Z0.063 (Cut Height)
H1
G1 Y2.4975 F65.
G1 X-0.0048 Y2.496 F65.
G1 X-0.004 Y2.4946
G1 X-0.0029 Y2.4935
G1 X-0.0015 Y2.4927
G1 X0. Y2.4925
G3 Y2.6375 I0. J0.0725
G3 Y2.4925 I0. J-0.0725
H0
M5
G0 Z1.
G0 X-0.005 Y0.0575
G92 Z0.
G38.2 Z-5. F100.
G38.4 Z0.5 F20.
G92 Z0.
G0 Z0.04 (IHS Springback + Backlash)
G92 Z0.
G0 Z0.15 (Pierce Height)
M3
G4 P0.5
G0 Z0.063 (Cut Height)
H1
I’m going to try and upload a video of the problem.