Quote Originally Posted by Gary View Post
Forget the 3Nm holding torque, it is not the holdiong torque that you need, it is the torque while moving.
I've been saying that for years, it's the torque against speed graph that counts, the one with the voltage next to it :whistling:

OTOH why mess around? I used all sorts of stepper drivers until Gary came up with his 220VAC jobbies and I haven't looked back since. Just make sure your motors can handle the lowest amp setting and fit a griddle to one axis so you can cook breakfast whilst cutting. Oeufs a la swarf. Crunchy