Less ball screw lead means higher resolution per step. A longer lead means the axis can move faster per ball screw rpm, better with strong motors and long screws. Your high torque motors probably can't spin very fast, so you probably need 20 mm lead. I have never tried stronger motors than the ones I have now though.
With 20 mm lead you'll have 0,0125 mm resolution at 8 microsteps. That's the same resolution I run with. I think your super strong steppers will handle 20 mm lead really well. |