ivan-crivicich
It seems very expensive, $ 20,000 for a head ... bah!
Gear Head is a 3D-printed replica of a human head, cut in four slices and connected by a gearing system. The object of the puzzle is to turn the head back in shape. Getting three slices right is easy. The challenge is getting also the last slice right.
Watch the YouTube video.
Read at the Shapeways Forum.
Read more at the Twisty Puzzles Forum.
Please contact Oskar for more information.