New question for everybody (I think I've decided to go with a NEMA 34 stepper as the powerplant for this operation).
Does anybody know of a stepper driver chip capable of handling 5-10A of current? Something that I feed enable/step/direction lines to, and hook up the 4 (or 8) wires of my stepper motor to? A higher current version of this chip:
http://www.allegromicro.com/en/Produ..._Numbers/3977/
Bonus points if it can handle more than 35V too (as high as 70 or even 90 VDC would be good)