Quote Originally Posted by Ger21 View Post
It's not that simple.
A 450oz Nema 34 rated at 6 amps will usually easily outperform a 570oz Nema 23 rated at 5 amps.
Inductance plays a large role. And typically, smaller nema 34 low inductance motors can spin much faster than large Nema 23 motors.
Ger, I think you got your motor sizes mixed up there...