Russ,
I have order a bunch of Ferrite Cores and will look into getting the EMI protection.
An interesting development today as I was running some tests. I had set my xyz zero location on the machine and then I had just left it for about ten minutes, nothing was running. When I returned I had noticed that MACH 3 had tripped into the Emergency Reset, and although I was able to reset MACH 3 the CNC was totally unresponsive. Had to power down, unplug and power back up to get it to respond.
Could this be systematic of a faulty limit switch just tripping on its own, or do you think this is still some EMI issue causing the issue.... or do I have more than one issue?
Bob