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 ...

The strength of object printed on filament-based 3D printers varies by the plastic ... on the strength of 3D printed parts, but does the color of filament have an effect on the stress and strain ...