Reuleaux Gear Triangle

Reuleaux Gear Triangle is an "illegal" meshing of three gears in a triangle. All three Reuleaux gears turn in the same direction. The name of this contraption is after the Reuleaux triangle, is a curve of constant width, the simplest and best known such curve other than the circle itself. Each of the three gears has three Reuleaux triangles stacked onto each other. The constant-width property of the Reuleaux triangle ensures that the gears keep touching each other at all times.

Watch the YouTube video.
Read at the Shapeways Forum.
Read more at the Non-Twisty Puzzles Forum.

Please order a 3D-printed do-it-yourself kit from Shapeways at this page (check with Oskar about screws), or contact Oskar directly if you are interested in obtaining a fully colored, stickered and assembled sample of this gearing contraption.