You mean inductance correct? That was why I twisted my signal wires. I O-Scoped everything and ran an inductance test on all the harneses. Cancelation was very good with the wires wrapped at 3 twists per inch for the low voltage side and 1.7 twists per inch on the high voltage side. Much more then that and there was a big spike in the resistance in the winds. Gotta love good test equipment.
As far as the Z axis somewhere down in the first post I listed the screw at .750" X6 Acme Lead Screw. The motors are all water cooled 500in oz motors run at around doubleish power. 55Volts at 20 Amps. I'm not sure what my total Z weight will be but I do forsee any lift issues. Do you? Maybe I am incorrect. The Z is not direct drive like the X and Y are. Z will be belt drive running two 1.892" Pullys at 30 teeth each. It will be running one to one and If I remember correctly this is about the smallest pully my supplier (Hubbard) said there was. If I could get something smaller I guess I could drop the ratio for Z but I donno if I need to.
Thoughts folks?
Evan