Non-Universal Joint is a solution looking for a problem. Functionally, the Non-Universal Joint is similar to a classic
universal joint. It is a ball joint with gears that enables to transfer rotational force. A set of them makes a nice string and fidget. Otherwise, it has no obvious application.
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 puzzle kit from Shapeways at this page (check with Oskar about screws and stickers), or
contact Oskar directly if you are interested in obtaining a fully colored, stickered and assembled sample of this puzzle.