Hi, I am new to Mach 3 and plasma burn tables also but trying to get a couple of TRUCUT machines started again after sitting idle for several months. The first machine, which I will limit this post to, is running Windows 10 with an ethernet stepper controller. I get it working, I will burn a few parts and then it loses the signal for the floating head limit switch. I believe I am describing this right and the contact alarm does not light. The actual switch is working fine

But, not knowing what else to do, I reboot the computer, reboot the controller, once, twice, multiple times, take a break, try it some more, and then it will start working again. But the next day same problem. I have searched for answers on this topic but haven't found them. Hoping someone here can point me in the right direction.

Steve

The next time this happens you need to check the diagnostic leds to see if the switch is signalling the control, it could just be a bad connection or a broken wire in the cable.

You were exactly right! Thank you! There was a loose wire from the torch head limit switch at a terminal strip inside an enclosure above the head. Repaired and is working fine. I kept thinking it was some parameter I had set wrong.

Now my second TRUCUT burn table running MACH3 on a Windows XP machine through the parallel port will not fire the torch. The program runs fine, dry run works great, but when I try to burn a part it stops because torch is not on. MACH 3 tells the torch to light but it doesn't. Can't do it manually either through MACH 3 but I think the torch is working fine. Should I start another thread and ask for help?

Thank you again
Steve