They actually scratched the chips to hide the make and model???!!! That's a very bad practice. Automotion has very good drivers so you might want to check them out. Plus if you call up they'll try to help you out anyway they can. I think they have a new drive which is around $350. It has step/dir input and electronic gearing or step multiplying. Plus I think it does true AC commutation without the need for hall sensors. This allows a brushless setup which has only 1 more wire than a brushed version. |