The waterbomb base unit tiles the plane. Adjust the fold angle to see the sheet compress and corrugate in 3D.
Waterbomb tessellation is a rigid origami pattern — the creases can be folded without stretching the paper. It's a Miura-ori cousin: valley/mountain creases form a hexagonal pattern. The fold is degree-4 vertex (4 creases meeting): two valleys + two mountains. Rigidly foldable: the entire sheet moves with one degree of freedom. Used in solar panel deployment, medical stents, and architectural shells. The fold angle parameterises the configuration continuously from flat (θ=0) to fully compressed.