Hexagonal Fractal (Q56460)

This is a not so often seen hexagonal fractal. The question was: What is the simplest 2D fractal with hexagonal symmetry under the constraint that it would make a reasonably sturdy structural material when stopping iterations at some point. That means the wakest points should scale with iterations too activate line with a=30° for sturdy configuration activate line with a= 0° for weak configuration edit: If you start asking that same question in 3D instead of 2D you'll get tetrapods out of tetrapods out of tetrapods and so on. like this here: http://www.thingiverse.com/thing:13786