User Manual
Prusa i3 Build Manual
Step 4: Connect printer to PC
Your printer does not need to be plugged into the wall at this point.
Connect the USB cable to the port on the Arduino MEGA (the underside of the electronics) on the printer.
Your computer should recognize the board and install the drivers automatically. If your computer does not see
the Arduino board, you may have some wiring wrong. In that case, un-plug it and check all of your wiring,
especially the end stops.
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