The New Machine

[Jonathan]

You seem to be implying that just because it's not US designed and built it's not going to be any good? Maybe that's correct in some, or indeed a lot of cases but I'll bet they're getting better. I got my PM752 drivers, which are rated similarly to what you linked to and are Chinese origin, and can only highly recommend them:

http://www.zappautomation.co.uk/pm75...5669f8490a6970

Still, 75v / 80V is nothing compared to the 240V driver. I think Robin Hewitt used them on his mill?

Interestingly the Gecko driver says 'Silent 20kHz PWM switching'. I'm pretty sure I can still hear 20kHz, so that would be annoying!