Quote Originally Posted by njhussey View Post
The switch mode ones don't take back EMF from the drivers when the machine is decelerating. If you make a linear PSU with some nice big caps then this is best, and you can make it to the ideal voltage. You really want some nice 80V drivers and a 72V PSU...then it'll fly which is what you need to cut plastic. I cut UHMWPE at 8000mm/min, your matched set wont get near that.

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Hmm good point.
I am not too good with power supplies. As in making them. I typically just get off the shelf.

Have you made your own?