Scherk minimal surface, as a voronoi mesh.
A Scherk surface (named after Heinrich Scherk) is an example of a minimal surface. In mathematics a minimal surface is a surface that locally minimizes its area. Physical models of area-minimizing minimal surfaces can be made by dipping a wire frame into a soap solution, forming a soap film, which is a minimal surface whose boundary is the wire frame.
Optimized for brass, bronze and silver printing. Walls too thin for polished metals or for steel.