Rotabram is a Doug-Engel-style flat twisty puzzle, conceived and designed by Bram Cohen and me. When parts are turned, the small gears are changing orientation and the black hexagons are broken. The object is to scramble the puzzle and then to get the puzzle back to its starting state.
Watch the
YouTube video Read at the
Shapeways Forum Read more at the
Twisty Puzzles ForumPlease contact Oskar directly if you want to obtained a fully dyed and assembled sample of this puzzle.