The motors are rated for 1.2A at 57oz of torque. Do you think the delta configuration is requiring more torque than the Cartesian setup? I tried vrefs at .4 or .5 volts but that seemed to make the motors louder. I was afraid to increase the voltage and burn up the drivers, but they still felt cool to the touch. ARe higher vrefs required for delta printers? The Z axis moving sounds fine. Thanks again for all the help.
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