Our Tormach PCNC 1100 has been running perfectly for three years. It gets intermittent use by the High School automotive lab, engineering class and robotics team.
The other day while machining the machine would estop at every quadrant while machining a circle. Yesterday the machine started to estop every time the spindle is turned on. The system with "mill" with the spindle turned off and no estop occurs to halt the program running.
But as soon as you try to turn the spindle on manually or through software the estop halt occurs.
I have tried: rebooting PC and CNC, different programs, programs generated by wizard (to make sure it is not a g code or m code error). I can jog the system through MDI without generating an estop halt.
Any ideas on how I can trouble shoot this?
Thank you in advance.
Brian