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Hi I am not sure how to get and install the firmware. I have arduino installed on my computer. What is the next step? thanks.
You have to download the firmware from the repository (https://github.com/M-Prime/M_Prime_One/tree/master/firmware/Marlin), then open the Marlin.ino file in the Arduino IDE and upload it to the board. The type of board you have to select is Arduino MEGA 2560 if you are using a RAMPS.