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Dino Octa
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A face turning octahedron. Built without CAD before the age of 3D-printing.

This masterpiece of the legendary Katsuhiko Okamoto was presented long before the mass produced face turning octahedron. Compared with the mass produced FTO (face turning octahedron) the Dino Octa has centers as additional pieces which are present but invisible in the FTO. The Dino Octa was built without CAD and 3D-printing technology by Katsuhiko Okamoto who built the first Master Skewb three years before this creation. Although both puzzle share an identical axis system (with three layers each) and three equivalent pieces types the two puzzles are not truly equivalent.
The Dino Octa implements the C1 piece type (known from e.g. Compy Cube) while the Master Skewb has the C4 piece type (known from e.g. Skewb)

The Dino Octa lived as a unique puzzle until Clayton Ertley redesigned it in 2010 unknowing about Okamotos creation. However this new version was CADed and 3D-printed.

In 2014 MF8 presented a series "Crazy Octahedron Plus". The version "Standard" (image 3) is a reimplementation of this puzzle.

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