I thought I would try to post this in an effort to help beginner searchers from asking the same questions already answerd quite succintly be Marris and others.As I find more of these posts I will put a link here .hopefully the thread title will draw more hits in order to facilitate expeditious info to the beginner,like me!
The link is a great thread on understanding how to choose a driver for your motor and have a good mach as far as AMPS PER PHASE is concerned
I would read all of MARISS'S posts for sure.
http://cnczone.com/forums/showthread...ighlight=phase