Above:Solved
Click a thumbnail to see its larger version and description.
Geared version of a Magic Octahedron.
Gear Corner Turning Octahedron applies the idea of a Gear Pyraminx idea to an octahedral shape. In this design all gears have 8 teeth and the basement for middle layer has 20 teeth. Each move turns the edge gears by 3/8 turn and the corner gear by 1/8 turn. After 4 subsequent turns the puzzle restores its octahedral shape, the 5 pieces involved being flipped by 180°.
Edge length: 60mm
In 2013 a mass produced version hit the market.
Links

eBay.com
If you're looking to buy, eBay is the one place you can find almost anything... if you're willing to wait for it, then pay the price!
Contributors
Thank you to the following people for their assistance in helping collect the information on this page: Timur Evbatyrov, HusoTaso. If you have any information or images that you would like to contribute to this entry, please click the apropriate add (
) or edit (
) icon above, or use the following links to modify this item, add a recent sale price or to add a new link.