Hi
at one fair I have seen a similar project that was using Step motors and pulleys to increase the speed, the motor label was HN200 3426 0280 AXR08 Mae Spa, this could be a starting point, is there any shield for arduino that can drive it or a drive that can be connected to the board ?
The other question is if it is possible via software to control in parallel more than one motor and apply different speeds (and maybe change the speed to just one motor).
Thanks in advance
Paolo*