Some questions to JAZZCNC or any other closed loop stepper experts

[Muzzer]

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. http://www.leadshine.com/producttype...stepper-motors

I used a 2Nm Leadshine on the Z axis of my Bridgeport conversion and it's been seamless. Having said that, I've only used proper AC servos since, the last lot being the Lichuan A4 servos that JAZZCNC has been using. They are a bit basic on the software front compared to a Yaskawa but seem to work adequately and are a fraction of the price. You can also swap the cooling fans for something more civilised easily enough if you don't want to have to wear ear defenders(!).

[JAZZCNC]

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.