From my table above I am looking at a 2525 screw for the long axis. If I do a 2:3 ratio I get 37.5 mm travel per one motor revolution. 37.5/10,000 pulses = 0.00375 mm per pulse. This would be the best resolution. Or 0.0001476 inch resolution. This seems plenty good to me but thought I would ask

This reduces the speed of the screw considerably to reach the same machine speed and actually gives me some headroom on the motor max speed as well.

At the moment I am planning on rotating the screw and putting in multiple ballscrew supports. Something like...


If I choose to do rotating ballnut I will need to recalculate the inertia and just make sure everything still matches up. I am leaning the other way as my parts are coming back around $300 usd per side....

Does this sound like a reasonable solution?