@langmuir-daniel I picked up a new swirl ring today and replaced it along with the nozzle and electrode. Seems like the torch is working well again (the edges look great).

Unfortunately, I’m having same problem with the torch not firing after the first shutoff.

I checked the air gauges on the plasma cutter and compressor and they both seemed solid (solid 75 psi on the cutter, tank pressure never dropped below ~95-100 psi. I also noticed that if I let the program run to the very end, the air stays on throughout the entire run, shutting off shortly after the end of the program (despite not cutting throughout).

This time I also tried uninstalling Mach 3 and re-installing it from scratch following the instructions in the video just in case I missed a step the first time around. (It seems like some of the settings from the previous installation persisted though since I didn’t have to select the motion controller or agree to/dismiss the EULA this time.) I did look at the Mach 3 on screen settings and G-code that I could see in the video and both of those seemed correct in my installation. I am wondering whether I could have accidentally toggled a setting that would make it behave this way.

One other thing that I tried today was pausing the program execution and setting the next line to run right after the torch turned off successfully during the previous run (for example, the line right after the T stops cutting). When running this way, I can get the remaining segments to cut out. For example, if the cutting sequence is:

T → dot → border

and the Crossfire does an air-only run on the dot and border, if I pause and restart from the line right after the T the Crossfire will move to the pierce location for the dot, cut it, turn off and then do a dry run on the border. If I pause and start from the end of the dot, the border completes and the torch shuts off successfully at the end of the program.

I’m not sure whether any of this is helpful for debugging possible software or firmware/controller issues, but I’m running out of ideas for things to test.

Including an image of the cut done in segments. Also attaching the full G-code since that was requested earlier.

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