Quote Originally Posted by ~andy View Post
He will need to over spec the PSU if he wants to reuse it in a future CNC router build (which i don't see him suggesting).



Nothing hideously wrong with 24v, just not optimal.
No he won't need to over spec the PSU those motors will easily handle 50V so running at 44-45Vdc on 50V drives will be fine for most small to medium machines or winder, so they will migrate nicely when the time comes and he will be getting optimum performance from the drives/motors at all times.

24V on the other hand while perfectly fine for a winder will be very restrictive in speed terms for a CNC machine. TB based 3 axis boards will probably run fine without issues at 24V but they don't like staying alive much after 36V.
The motors are capable of running above 50V so why not have the ability to use there full potential, Better to have spare capacity than be lacking at later date when needed.