Markus' Tetrahedron

cults3d

This puzzle was conjured up by Markus Gotz, a visionary but erratic puzzle creator. Four identical components come together to form a tetrahedron. The components have unconventional shapes that might make them tricky to print, but it turns out the standard technique of cutting them in half makes them printable without any need for supports. There are two possible solutions. The original one discovered by Markus is self-supporting, although it doesn't interlock. The second solution interlocks, but requires a bit of flexibility from the pieces. If you decide to make this puzzle out of PLA, you might not be able to assemble the second solution. A copy made out of PETG is shown here, which has enough flexibility to assemble into both solutions. Markus Gotz wrote about this puzzle in CFF 66 (Cubism For Fun, March 2005), a publication dedicated to all things puzzles.