I have a old 110 volt single phase Southbend drill press would like to have variable speeds on it. Is there a way to put a VFD on it or another kind of other variable speed controller on it ? Thanks Dave
My approach to that problem on an old drill press was to swap out the AC motor for a modern 90vDC motor and a KB pwm controller. I kept the step pulley- don't use it much, but do use it. That approach gave me the best of both worlds- old, indestructible iron (with a rebuilt spindle) and a modern speed control.