Quote Originally Posted by r0bsk1 View Post
Originaly i wasnt planning on a 2m X axis and they came up cheap on ebay. Ah well looks like they'll be going back on ebay.
I'll stop messing about trying to design the rotating ballnut mount to accommodate both size motors and just make it for the 3Nm nema 24's then? :)
Your gantry as drawn will weigh about the same as mine, so you'll be fine with 3Nm on 70V since that's what I use and the system is virtually identical...

Nema23 Stepper Motor 3.1Nm