[Gosse Adema] made his very first instructable by detailing his Lego 3D printer build. It’s Prusa i3 based, and originally started out as an A4 plotter with repurposed steppers out of an old HP ...

It creates directions on how to assemble the LEGO parts, and exports STL files for the parts to be 3D printed. These custom bricks snap into the LEGO structure. In their demo, a head mounted ...