<p>Inspired by a Khan Academy Engineering blog post, I set out to make make a copy that I could take to the office. <a rel="nofollow" target="_blank" href="http://engineering.khanacademy.org/posts/evil-puzzle.htm">http://engineering.khanacademy.org/posts/evil-puzzle.htm</a></p><p>This puzzle has 2 sides, one is decptively harder than the other. Both are the same outside dimensions so they can be glued together.</p><p>Find out more about this puzzle and how I made it here: <a rel="nofollow" target="_blank" href="https://pinshape.com/items/7792/%E2%80%8Bhttp://joes3dworkbench.blogspot.com/2015/08/modeling-puzzle-of-evil.html">​http://joes3dworkbench.blogspot.com/2015/08/modeling-puzzle-of-evil.html</a></p><p><a rel="nofollow" target="_blank" href="https://www.youtube.com/watch?v=GPMqMpc3nRM">https://www.youtube.com/watch?v=GPMqMpc3nRM</a></p>
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