A Dino Cube with twelve gears turned by one halve of the turns.

• Inventor: Eitan Cher
• Mechanism: Gears (Others)
• Patents: Unknown
• Producer: Customly 3D printed
• Year: 2023
• Original Price: $0.00 USD
• Current Price: No Data

This puzzle is the result of a collaboration: Bram Cohen worked out the concept, the gear ratios and the orientation. Eitan Cher CADed the puzzle, printed and stickered it.
This is an enhanced version of the Dino Cube. Four turns (those not shown here) do not affect the gears. The other four turns affect the three gears included in the turn.
Image 5 shows the effect of one turn. The small gears have 12 teeth while the large turn has 39 teeth. Bram took great care in choosing these numbers as he wanted two number which are not coprime but which greatest common divisor is not to large. Otherwise the puzzle would be too easy.

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