The probelm shouldn't require this extensive of a treatment. In fact, you probably could have stuck some .01 caps across the A/C lines to kill the noise. The other noise would would be inductively coupled or generated from the motor coupled into the data/control cable. Tend to think that the speed control on the dremel is more of the culpret than the noise from the brushes.Originally Posted by Imagineering
Again, I think this far exceeds what is neccessary. I'm using plain unshield 8 cond. data wire to drive my motors with 42V P/S. Only noise I got was in my limit switch lines and that's because they share the same cable as the motors. Keep us posted.Regarding the Data Ground, this is where I have all my shields attached. I've also placed .01uf Capacitors across every input to earth which should help.