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General Mach Discussion / Emergency stop erroneously activates

« on: June 22, 2013, 10:30:17 PM »

I have been having a problem lately with the gcode program stopping mid program and acting as if I hit the emergency stop switch on my cnc controller.  The plastic that I have been machining lately causes a lot of dust, so I though maybe the physical switch was just getting dusty and losing contact.  So, for the sake of trouble shooting, I turned off the external stop switch in the configurations for MACH 3.  The program still stops periodically mid program and activates the EXTERNAL EMERGENCY STOP ACTIVATED.  So, how can this be if I have deactivated the input for the external stop button? Any ideas?