Auxetic Lattice (Antichiral Hexagons)

prusaprinters

<p>This lattice is auxetic, meaning it has a negative Poisson's ratio. Unlike most materials, where compression in one direction makes them expand in the other, this lattice wants to compress or expand in both directions at once. &nbsp;</p><p>The design is based on a tesselating hexagonal grid, with the straight edges replaced by arcs. Adjacent vertices twist in opposite directions when compressed, so this is called an antichiral lattice.&nbsp;</p><p>As auxetic structures can expand and contract, they can flex and conform to curved surfaces. This is used in high-end running shoes and medical applications where they can maintain their structure whilst flexing with the movement of the body.</p>