I have had to replace the servo motor on my small CNC lathe with a 1.5hp 3 phase induction motor, driven from single phase, through a VFD. I use the machine with Mach3 and everything is working fine. Including the r.p.m. encoder. Unfortunately with this "economy" replacement I have lost spindle synchronisation.
My question is, can there be any possible way to synchronise the spindle using this motor, for screwcutting. - If so can I use the simple "hall effect switch" and magnet on the spindle method.
Your advice appreciated.