Transmission is a puzzle created by Oskar van Deventer and used as his limited-edition exchange gift at the International Puzzle Party in Helsinki, August 2005. Here we offer you a new edition.
The object of this puzzle is to place the four gears onto the four axles. If you place them randomly, most likely the gears will jam and do not turn. In the solved state, the four gears can spin smoothly. The base is made of 8mm thick laser-cut 'ice' acrylic and the wheels are made of 3mm black acrylic. Have fun!
UPDATE: Osker has made a nice video explaining how the puzzle works!