Whirlwind Tessellation
![Whirlwind Tessellation (Michał Kosmulski)](/small/img/models/w/whirlwind-tessellation-400-489dcb368.jpg)
![Whirlwind Box (Michał Kosmulski)](/small/img/models/w/whirlwind-box-400-be98e9a26.jpg)
![Precreased sheet for the box — the central 8×8 square is the precrease for the molecule itself (see also text for details)](/small/img/models/w/whirlwind-box-precrease-400-bda65604a.jpg)
You can figure out how to fold a molecule of this tessellation based on instructions for the Stacked Whirlwind Molecule.
For a clean fold, you can use the precrease pattern shown here. The whole sheet is the precrease pattern for the box, based on a 16×16 grid. The central 8×8 part is the precrease just for the tessellation molecule. Disregard the error I made while precreasing, two unnecessary creases which break the symmetry and only appear in the lower part of the pattern. The pre-creased lines which abruptly end without meeting any other creases are the result of this model using curved folds, which are not precreased, and the model being 3D. Obviously, in a complete PreCP of a flat-foldable model, such creases could never appear.
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