> Why use a stepper motor? We use a universal DC motor with an external > motor controller, an extra $75. > A lot more power, at the same or less cost. I will check out IDEC. I've considered a DC motor but we'd need some feedback, then, because positioning is important here. Due to the low (and fixed) torque in this application, knowing the number of steps is sufficient for our application. We also need to be able to adjust the speed and the acceleration and jerk of the motor. A servo would be nice but they are NOT cheap. And per Alan's suggestions: Cost is the driver here- our customers don't have much room to demand different solutions from us. Thanks! Mike h. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist