Reducing the space in my garage.

[Rich]

Thanks for those three points Jazz, they help a lot!

I've corrected my calculations and marked them down as 'guidance only'. The main issue I was focused upon within the calculation was the effect of microstepping on the available holding torque. It appears with a 2.8 gear ratio, set at 4 microsteps, the machine retains 100% peak holding torque.

Having used your original recommendation as a starting point for the research, I now see that I have the option to spec the machine according to what is required, circa 1.5Nm Nema 23 low inductance or over spec the machine and carry the electronics forward. More reading to be done!