Quote Originally Posted by Muzzer View Post
Those "DC servos" are closed loop steppers with the driver and encoder integrated into the motor, which is pretty neat. You just supply the DC power (48V or so) and the step/dir signals and it does the rest. These seem to be clones of the Leadshine Integrated Easy Servo family, although I've no idea how well they've been cloned.
Don't think they are steppers Muzzer, I have never used any but I've seen them fit on machines and they certainly don't sound like steppers. They sound just like servo's whisper quiet and smooth, plus they spin much much faster. I have used plenty of Leadshine Easy servos which are definitely steppers, 3 phase steppers.