Mach3 stopping while cutting, no programmed pause or stop.

On the Mach3 main screen (program run tab), is there a status message when the Mach3 and machine stops? Additional Information: We didn't look, we don't experience a lot of problems. Are those messages stored in a cache file ? Additional Information: I don't believe there is a log associated with the status messages (in my brief research). There should be, definitely. Next time this happens, check out that message. You may find that the limit switch was triggered from some interference from the motors or other EMF source. If that is the case, then you will need to do the following: - Use shielded cable for the limit swtches - Reorganize the limit switch cables far away from the motor cables - Adjust the debounce parameter for the limit switches within Mach3 Additional Information: I am embarrassed to say we don't have limit switches installed. It does share power with other machines, like a table saw and a big dust collector. Additional Information: Well, for personal safety, the machine will not be able to break through the extents of the machine, so you are fine. The limit switch triggering is the only thing I can think of that would stop Mach3. I would love to know the status message when it happens again. Just for fun, check the inputs section of the "ports and pins" dialog and make sure all of the inputs (that you are not using) are disabled, so they don't act as antennae. Additional Information: Will do, thank you very much. Additional Information: You are very welcome and thanks for using this customer service section so this question can help others too. Additional Information: I had my mill work fine and then one day the same gcode would pause intermittently (not loosing steps/simply stopping and going). Turned out this happened after I had remounted my extension cords. I would only happen if the spindle (makita) was running. The Makita was causing interference. I got around it by hooking up the makita to a long extension cord plugged in far away from the mill