Thru experience I can tell you that Single 4Nm nema23 with inductance around 2-3Mh wired in parallel running 4 to 4.5A with 68Vdc on 80Vdc Digital drives connected to 16mm Dia10mm pitch ballscrew with a Good motion controller (not parallel port) will easily and reliably reach 12M/min moving 40-50Kg
Hi Chrono,

Dean,

For those of us who are learning and planning, could you expand on the above?

Is this 60BYG401-03 https://cnc4you.co.uk/resources/Step...1-03%204Nm.pdf an example of the stepper categorised above? or if you have another preferred source/model, what is it?

and

I mostly tend to fit Closed loop hybrid steppers these days and many of them can be driven with AC or DC.
Are those different from the above and do they need different drivers?

Thanks,
Martin