I use a 1/5 hp 1725 motor on mine, more power then I can use, alot of people use DC motors, I cannot see a servo do a very good job unless it has a controller worth more then the lathe. I could be wrong but straight PWM controls are only used on PMDC motors and not servos, servos typicaly use a form of PWM but with feedback and these have special controls the windings lend themselves to high current draw compared to a standard DC motor. Alot of guys are using tread mill motors and a run of the mill PMDC pwm controller.
chris |