Trying to find a better solution for making polyhedral nets than the folding models from Day 44, today we have a hinged version of a tetrahedron. The hinges are built to print together, fully assembled, using the "low" setting on a Replicator 2.
STL file: http://www.geekhaus.com/makerhome/day63_tetrahinge.stl
Tinkercad link: https://tinkercad.com/things/29dlcUYxlhU-day-63-tetrahinge
Thingiverse link: http://www.thingiverse.com/thing:173299
Settings: MakerWare "low" setting in some amount of time that I forgot to make note of!
Stuff you might want to change: What I'd really like is to have modular faces that you clip together after printing, since then I could make much larger polyhedra. Maybe another day...
UPDATE: This is now a "Staff Favorite" at Tinkercad. You're my favorite too, Tinkercad! :)