Here’s how Prusa’s 4-color mod works ... To me, this is how we’re going to do multi-color 3D printing in the near future. Stepper motors are cheap, boards that switch motors on and off ...

He’s already used a 3D printer to do some light painting, and now he’s doing it in color. This build is an ... the RGB LED is wired to pins 4,5, and 6 of the controller board, and the shutter ...