An OpenSCAD script for modelling a puzzle box whose solution is to use centrifugal force.
https://en.wikipedia.org/wiki/Puzzle_box
https://en.wikipedia.org/wiki/Centrifugal_force
A puzzle box is a form of locked box which is unlocked by solving a puzzle.
For this project the secret to opening the box is spinning it so as to pull several pins out of the center via centrifugal force.