I used one of your boards a couple of months ago, it worked great. I sold the lathe, but I was interested as to how the new design is working out. Will the steppers run cooler with the idle function? I got used to the hiss, but will this be quieter?
The drivers still can use a PS voltage of up to 42 VDC. The new enhancements include two new features 1) driver protection of disconnecting the leads from the motors, and 2) and the idle current reduction. Any thing else?
I'm thinking of buying and cnc'ing an X3 sometime in the future, maybe using your new board.