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Modular Mechanical Calculator

This mechanical calculator automatically carries addition and subtraction operations. The long mark on the read gear indicates the number that each digit is displaying. To add (e.g.) 43+19, you would first move the 1's gear to 3 and the…

Downloads: 25
Likes: 2
Rating: 0

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PrintablesSignore Galilei

Octahedron Dreidel

This octahedron dreidel spinning top is inspired by tetra tops. Matching letters are on opposite faces, so each corner has all 4 letters, meaning the result should be fair no matter which way you spin it. Designed in TinkerCad. Version in…

Downloads: 12
Likes: 1
Rating: 0

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