I have a stepper motor that is 42x42x60mm (width, length, height) and has a shaft in the front and back of the motor. This thing has finally given out and won't rotate even when powered down. But I cannot find a motor like this anywhere and this is on a $1000 3d printer.
So I am wondering could I replace this motor with 2 steppers back-to-back? I have to keep the stepper driver the same so is there a way to tie two motors into the same driver, like just by connecting the lines of the two motors? One major problem I forsee is that 2 steppers back-to-back will oppose each other for cw and ccw rotations.