Quote Originally Posted by Mr*Beaver View Post
I can't work out why these are sold with 60v supplies?
For people who do no proper research and automatically assume bigger is better.

If you really want to improve performance, you want the lowest inductance motors possible, as inductance is what results in back emf and is what really limits how fast you can get motors to run under comparable conditions.
But even with high voltage stepper drivers and Nema 34s, it's very likely a Nema 23/4 with a suitable supply will produce more useable performance.