[Bubba]

Looking at the link given in post #1, 24 amp is the PEAK current.
If you do some research, Mariss is given some good formulas on converting forces>watts required and from that, you can derive voltage and current.
Remember also the 80V rating of the gecko's INCLUDES back EMF. Therefore, you don't really want to use an 80V supply. I have seen suggestions that 72V max is about it.
You need to do some calculations on what you expect your loads to be (use a safety factor) and then figure it out. Again, I have seen Mariss throw out a figure of about 500 lbf for the cutting force. In my case, with the mechanics that I have, it figures out to about 115 watts being required. Then if you have a three axis machine, you don't expect all axis to working at top figure all the time so you figure max VA required and multiply by 2/3's to come up with a reasonable power supply. I also second Al's recommendation for a linear supply vs a switching supply as there have been good reasons posted for NOT using a switcher for this type of application.

Bubba