In this project, Boomy’s face and buttons are 3D printed with different colored filaments. This can actually be done with single extruder 3D printers – dual extrusion is not required! To achieve a multi-color effect, the face and buttons are designed to be 3D printed in different gcode files.

First, we’ll print only 1mm of the boomy-face.stl file using black filament. After the part has completed printing the first millimeter, we’ll change the filament and load gray/silver. Then, we’ll print the part starting from 1mm and stopping at 2mm. Once thats done, swap the filament out for white and resume printing the part, this time starting from 2mm and stopping at 3mm.