Geared 5x5x5 is a higher-order variation to the Gear Cube. A set of gears make an inner layer turn at half the speed of an outer layer. This way, the outer layers can only be turned by 180 degrees. The gearing ration is 4:40, so the puzzle always retains it cubic shape, and the edge gears can only be flipped by 180 degrees. Still, the puzzle is fiendishly difficult.
Watch the YouTube video
Read at the Shapeways Forum
Read more at the Twisty Puzzles Forum
UPDATE 24-10-2015: This puzzle got knocked-off in China, possibly the first recorded case where an illegal mass-production of a puzzle was done from a 3D-printed sample purchased from Shapeways.
Watch the story on YouTube.
Read the discussion at the Shapeways Forum.
Read more discussion at the Twisty Puzzles Forum.
Please order the 3D-printed parts for this puzzle as follows:
-1x Set 1
-2x Set 2
You can buy a legitimized version of the mass-produced puzzle at HKnowStore. (Search for Oskar Gear 5x5x5 Cube). Please contact Oskar directly for more information about this puzzle.