Adding CANBus to my 3D Printer with an EBB Upgrade

Recently I added an upgrade to my 3D printer that I’m really excited about as it takes advantage of quite a few different technologies that I haven’t used before. Primarily the use of CANBus and Klipper’s multi-MCU processing capabilities. In short the upgrade uses CANBus to communicate between the printer’s mainboard and the PCB placed on the tool head, drastically reducing the number of cables down from ten plus down to four, two for twelve volt power and a twisted pair of CANBus wires for data and signalling. ...

September 21, 2025 · 2 min · 334 words · Sebastian Pietschner