Variomatic Cube is a twisty puzzle with gears. All three pairs of opposing faces are connected by gears. And they are not just some gears, they are gears with a varying gear ratio. Some sometimes, opposing gears will turn with a 1:1 gearing ratio, some with a 1:2 ratio, and sometimes with a 2:1 ratio. The operation of the variable-ratio gears is explained and illustrated here and here. Watch a demo of the inner gearing mechanism here.

The name of this puzzle is a tribute to the variomatic transmission system by the Dutch car manufacturer DAF. Note that the variable-gear-ratio mechanism is very different from the DAF variometic system.

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

Please contact Oskar directly if you are interested in obtaining a fully colored, stickered and assembled sample of this puzzle.