Penrose Puzzle by stellarinnovation

Last crawled date: 3 years, 1 month ago

Lasercut Penrose Puzzle in a likewise lasercut box. A birthday present for a very smart 9 y/o girl, who's an uber puzzler.
Remix of Flex box, which is a remix of Parametric Flexbox. Cut in 3 mm plywood. The puzzle is a remix of Penrose Snap Tiles. The "thin rhombuses" are cut in clear acrylic, the "thick ones" in red (both 3mm).
It's a fascinating puzzle. There's five-fold rotational symmetry, but unlike square, triangular and hexagonal tilings it is non-periodic. It NEVER repeats. See Wikipedia for more background.
Twenty thick and fifteen thin pieces are useful for a small puzzle. There are ten pieces in the SVG file called thin star, but only five in the thick star. In general, more thick than thin pieces are needed. In a really big puzzle, the ratio of the thick rhombuses to the thin ones is the golden ratio 1.618...