Corn Gear is a gear-design exercise. The teeth of the gears are wound in a helix around a cylinder at a 13:5 angle. Two mirror-image corn gears can roll over each other at 0 degrees, like normal gears, but at 90 degrees as well. The corn gears can also roll over a flat gear bed. Here are ideas how to apply these gears. Here is a related patent.
Watch the YouTube video.
Read at the Shapeways Forum.
Read more at the Twisty Puzzles Forum.
Please order a 3D-printed do-it-yourself puzzle kit from Shapeways at this page (check with Oskar about dye), or contact Oskar directly if you are interested in obtaining a fully colored, stickered and assembled sample of this puzzle.