I am installing new controls on a knee mill and would like to install a VFD so I can do tapping. At the very least I need to use a floating tap head, although ridgid tapping would be ideal, once Mach 3 gains support for it or if I possible go with another program I may integrate it. The motor is 3HP and I would prefer a conver that can run on 220v 1ph. Which do you guys suggest?