I bought a PM25MV mill because it looked to be better than the grizzly unit. I've built all the control systems now to do a CnC conversion. I got an Acorn motion controller and coupled it with some Panasonic A4 drivers and 500w servo motors. Since they have their own encoders, I don't have to worry about missed steps or any of the issues faced by stepper controls. I am down to the last few hours of wiring and it will be all ready to go.
I'm wondering if anyone can recommend a kit for the conversion? Obviously, I have a different size motor from the NEMA steppers, so I'm not expecting a bolt-on affair. The good news is, I can use this mill to make parts. While I'd love to just purchase a kit that's ready to install, finding one and actually buying it are different issues. I've spent more than a month trying to get a firm commitment on the parts I need, so at this point, I have just started to machine some motor mounts myself.