728: (178/365) Bumpy Octahedron

Posted by wonko on June 27, 2017 in 365-2017, Crease Pattern, geometry |

So you take a 2×1 rectangle, fold it into 4×2 squares, then halve the squares:

Then bring one pair of adjacent corners for each square, sink the dimply corner to lock, then repeat.

The net effect of this manipulation is a sort of regular polysolid that closes in on itself.

Designed by MichaƂ Kosmulski, this is sort of a completed model but I think it lacks any real locking mechanism to make it stable, but an interesting exercise in closed sinking.

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