So ive been having issues with Mach 3 not stopping and starting the torch firing for a couple days now, it seemed intermittent.
Now the program will not fire the torch at all, after cutting for about 6 minutes I moved to a new program and loaded it. now it won’t fire the torch when M3 shows up and it won’t even fire the torch with the manual torch on/off toggle.
the torch is fine, i can pull the trigger and get an arc going.
Had this issue the other day as well. Running a hypertherm powermax45 connected through the cpc port. Checked everything over and it needed up being the plug into the control box. Once I unplugged it and plugged it back in the torch would fire again.
I have tried disconnecting and reconnecting all cords to the control box, computer and cutter, cycled power and restarted and reset everything computer and electronic. Crossfire will move the gantry just fine so it has to be something between a circuit board and the torch connection.
On a side note, when I initially setup the torch, I never got perfect continuity between the trigger wire when the trigger was depressed. multiple tries and it was between 200 and 400 ohms, while the other two were perfect continuity.
Maybe a torch trigger issue? Manually, the torch does not always fire on the first trigger pull…
Above is what I ran into with the RAZORCUT 45
Same as you it worked fine then started intermittently not firing then stopped all together
Also I find the the tungsten electrode comes loose after a few projects and causes an intermittent no firing of the torch.
So after every cut or two I remove the nozzle and check the electrode and nozzle
So far
Smooth sailing.