Geared 1x1x4 is a four-layer twisty puzzle. The four layers are held together by planetary chevron gears
. The object is to rotate the layers, scramble the puzzle and then get it back to its original state.That is much harder than it looks.The gearing ratio's are 35-10-55 and 35-21-77.
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.