A tetrahedron with gears. Compared with the preceeding Gear Pyraminx this one has a different cutting depths which gives it a resemblace to the HMT aka Halper-Meier Tetrahedron.

• Inventor: Timur Evbatyrov
• Mechanism: Gears
• Patents: Unknown
• Producer: Shapeways
• Year: 2012
• Original Price: $0.00 USD
• Current Price: No Data

After his Gear Pyraminx the creator came up with another design of a tetrahedron with gears. In this case the cuts were placed in a different depth which made the small triangle in the center of each face visible. In addition this changes the number of teeth for the edge and corner pieces.

To fully restore the original position, you have to repeat one move 24 times, that is, the corner has to be turned around 28 times.

This puzzle allows a special move were two opposing edges are moved the same time.

Edge length: 76mm
Weight: 32g (a true leightweight)

Thank you to the following people for their assistance in helping collect the information on this page: Andreas Nortmann, Lawrence Cuthbert. 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.