Originally Posted by
JimDav
I should have stated that at install, a new 220 line was run by an electrician from the shop sub-panel. The sub-panel is a drop off the main house panel. It is a dedicated 220 circuit breaker and the ground bar used there. Essentially it is all grounded to the house ground which DOES have a ground rod. The PC is plugged into a regular 20 amp circuit. Hope that makes sense.
I'm guessing this is probably the root of your problem. The amount of static electricity generated by the machine is too much to rely on the ground from the electrical outlet. The machine is also highly sensitive to static shock and can go bonkers easily.
You should do the following:
1. Drive a standard grounding rod into the ground at the closest possible point to the machine.
2. Run a heavy (6 gauge or greater) copper line to EVERY moving component on the machine and ground them to that rod. These lines can be daisy chained.
3. Run a separate line from the electrical box ground line to the grounding rod. DO NOT daisy chain this line. Run it direct from the box to the rod.
4. If you have a dust collector or vacuum hold down, ground the hoses, motors and housings.
Be sure to attach the grounding lines to your machine securely. I used copper eyes soldered to the lines and then bolted them to the machine. You may think this is all silly and overkill but it is not. These machines aren't reliable without absolute and perfect grounding. Any moving part that isn't individually grounded isn't grounded at all.
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