Pythagoras Gears
Channel: OskarPuzzle
Date: 02/01/2016

More OskarPuzzle at https://www.youtube.com/user/OskarPuzzle

Pythagoras Gears is a set of nine 7-teeth gears contained in a 27-teeth annulus gear. It is a proof of concept of this gearing mechanism with no obvious application. After several failed attempts, Oskar managed to design a planetary gearing system with more than one layer of free-hanging planet gears. The solution was to have nine 7-teeth gears placed in a 3x3 square configuration. Some fudging was required, as the gearing ratio 7/27 does not have a square-root-of-two in it, as required by Pythagoras famous equation a^2+b^2=c^2.

Copyright (c) 2015, M. Oskar van Deventer.

Buy at https://www.shapeways.com/product/G2H8XPR2H/pythagoras-gears
Read more at Reddit Mechanical GIFs: https://www.reddit.com/r/mechanical_gifs/comments/3z4xhn/pythagoras_gears_by_oskar/

Frequently Asked Question: http://oskarvandeventer.nl/FAQ.html
Buy mass-produced Oskar puzzles at http://www.puzzlemaster.ca/browse/oskar/ (USA, CA) and http://www.sloyd.fi/oskar-deventer-c-151_154.html (EU)
Buy exclusive 3D-printed Oskar puzzles at  http://shapeways.com/shops/oskarpuzzles