What specifically do I need to look at? The more I read on AC and BLDC servo's and drives it seems that matching the drive and servo is a very tricky process. Is this the case? Or can someone give me a simple roadmap on what to look for if I was trying to match an AC Servo motor (any brand) to an AC drive (again any brand). Also, I plan on using either EMC or Mach3 to run the machine (probably EMC) so what else should I take into account based on that?