Quote Originally Posted by Doddy View Post

Your choice of 36V for the Z? - the original idea was to understand if the increased voltage improved your most susceptible axis. But that's your call and your game - leave you to it. I'd recommend replacing with the BFG toroidal transformer in the future.
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My thoughts too.
Look at the inductance level on the steppers. Square root the figure and then multiply by 32.
This will give you your ideal voltage for the steppers to sing.

For example an inductance of 3.5mh= 3.5 Sqrt *32 = 59V!!
Inductance of 2.5mh= 2.5 sqrt*32 = 50V!!
Inductance of 8mh= 8 sqrt*32 = 90.5V!!
See where I'm going with this?

You'll find 36V with nema23 size motors is a bit of a dissapointment. You want at least 48V.