My research so far indicates that most stepper motors can be connected directly to the ball screw but servo motors need some sort of reduction gearing to make them useable.
what is the best way to approach this ?
Gears ? Belts? or some other method ? - I would have thought gears would add signigicant ammounts of backlash to the system, but the small toothed belts such as the the ones available from RS components wouldnt have the strength to transfer the ammount of torque my motors are capable of delivering.
What does everyone else do ?
Dominic
http://www.ukrobotics.com