# Baby icosahedron

A friend asked me to make him a d20 since he collects all shapes and sizes of dice.
He sent me a pic of one he found on Pinterest.

It was a bit of a challenge building it, but it turned out just fine. No glue, pressure fit. It is solid and rolls great!

I was fresh out of bananas so I used a real d20 for scale.
Cut out of maple ply from Johnson plastics

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Bet that was fun to assemble! (Looks pretty small.)

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OK so I think all the pieces are the same shape? That is counterintiutive to me, and very cool. I guess its a side effect of making the sides have an even number of fingers.

This ought to work for any regular polyhedron I suspect, and maybe for all completely convex polyhedra even at higher complexity. Concave shapes would work but be hard to keep aligned maybe? Have you fooled with any other shapes?

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Yes, all the sides are the same shape, an equilateral triangle. I havenâ€™t played with it to create other shapes but it would probably work for those that have a triangular side. A d6 would he made up of squares, a d8 of diamonds etc.

A bit smaller than a golf ball. Any smaller and I didnâ€™t think the teeth would hold up

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No, d8s are also equilateral. You could take 4 faces from the d20 and make a d4, take 8 more and make a d8, without designing a single extra thing.

Make regular pentagons, and youâ€™ve got a d12.

Make â€śkitesâ€ť and youâ€™ve got your d10 [Technically, a â€śpentagonal trapezohedronâ€ť], change the numbers to be 10-00 and you have your percent die, and voila, a full 7-set of D&D dice.

â€¦ if youâ€™re so inclined.

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Cool! Might be useful as a box as well.

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Thatâ€™s cool. Looks tiny but solid.

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