Weaire-Phelan structure
thingiverse
These are the base units of the Weaire-Phelan structure, as well as its periodic unit. The periodic units can be assembled into a 3d array without rotations. The periodic unit consists of 6 base units, where two units, one rotated by 90°, are joined into an axis base element. Those are then aligned on their respective cartesian axis and combined into the periodic unit. When the periodic units are assembled into a 3d lattice, regular voids will show up that make up the other (conjugate) base structure of the Weaire-Phelan lattice. The Weaire-Phelan structure can be used to create interesting patterns as in the Beijing National Aquatics Center. It is a regular packing of elements that is more efficient than the Kelvin structure. I plan to make it into an infill pattern for PrusaSlicer. This model has been based on the construction of the Weaire-Phelan structure in Rhino by Tuğrul Yazar: https://www.designcoding.net/weaire-phelan-structure/
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