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Basically you have to make sure that you're owner of the 8-bit version if so you only have to solder 1x to grab the signal pin for the Piezo. Beside that you will have to lay down 3wires for the Piezo running from the board to the sensor at the hotend. There is no need in drilling any holes or modifications of the Mainboard. Since I'm providing a ready to use firmware you only need to flash the firmware file to enable the optimized settings for the Piezo system.