## Tangle Font |
## by Erik Demaine, Martin Demaine, and Ronald Taylor, 2016 |

Each letter in a font is folded from a Tangle toy of identical length, that is, a closed loop of rigid quarter-circles connected by twist hinges. Two fonts are available, of lengths 52 and 56.

At the bottom is a puzzle font, presenting the geometries as a sequence of N, E, W, S steps.

An intriguing open question, described in our paper “**Tangled Tangles**”, is whether it is possible to reconfigure between all letters in each font via simple moves (“reflection” and “translation”). This problem is related to flat-state connectivity of fixed-angle chains.

Check out other mathematical and puzzle fonts. • Feedback or not working? Email Erik.