That's a really interesting take there, Jazz. All the motors we are using are eight wire, so we do have complete flexibility. And that means the PSU for the mill only needs to supply half the current that an equivalent router one might - say 4A at your 65v, allowing for a small saving in cost, but a larger saving in space. I am coming round to the benefits of the AM882 even for this application - future proofing certainly - as well as gaining the advanced resonance handling etc. I think that must be the way forwards.

So now I have to take a deep breath and start considering my first large value order into China - six drives. Seems no alternative for the AM882. Anyone have any idea why it's not available in the UK, especially since it is the stepper drive of choice on this forum?