Testing Site

Cool brain gear doodad

3D Printing & Imaging Craft & Design Fun & Games

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and makezine.com. My work has also appeared in ReadyMade, c't – Magazin für Computertechnik, and The Wall Street Journal.

View more articles by Sean Michael Ragan

@seanragan

January 5th, 2010

According to Thingiverse user mappum, who recently published an STL version of a similar gizmo, these beautiful do-nothings are printed to test commercial rapid prototyping machines.