Quote Originally Posted by ramsbury View Post
I don't think it would either I just thought a nema 23 stepper with 12:1 would be working too much on a 120kg gantry.
No the gearbox is doing the work and it's designed to do that work. So long has you choose a low backlash box it will be fine. Something like this but the 5' arc minute version.
RE55 Planetary Gearbox