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Impossible Dovetail Piggy Bank — image 1
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Impossible Dovetail Piggy Bank

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Piggy bank with lid that is secured with an impossible dovetail joint.

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Makes
14
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6,108
Reviews
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Updated at source:

Model information

License
Creative Commons — Attribution

At first, this piggy bank appears impossible to open, with a dovetail joint on all four sides. In reality, this is a simple box with two parallel dovetails, spanning the same direction as the coin slot.

Print Instructions: Print both models with the z axis oriented the same as in the STL. No supports necessary. Slicing with 3 shells and a 0.4mm extrusion width will completely fill the walls and making it solid. The lid and bottom can be printed at the same time with any printer that has a similar build volume to the Ender 3.

*Update: The Bottom-Tall model is double the height of the original (140mm).

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