Hexagonal Burr Puzzle (configurable)

A more or less parametric scad file that allows you to create hexagonal burr puzzles. In the current configuration, you can mostly enable or disable the various notches in a 12 piece setup (4 x 3 parallel bars) using a binary pattern - generating anything else requires a bit of twiddling with all kinds of parameters. But the hex bars and setup should provide a decent start.

It also shows how to intrude faces in the hexagonal directions to increase the tolerance.

An example is included ho