I actually powered x-motor driver from Nano-board 5V pin, and Y and Z motor driver bord got its power from the 5V pin header of the Raspberry 4B I’am using.
So I made my own version to fit the motor driver board and the Nano. I made a cut out to have access to the double pin row where GND and 5V can be connected.
But, there is a problem, the stepper motors runs too hot, heating up the PLA so the screws holding the motors does not hold very well. I’am thinking of inserting som current limiting regulator or may be just some resistors in the 5V supply to each driver board. Or does any one have a better solution. Are you all running the Nano board with “hold” current disabled, so the motors are released from power when not running?
