Check out this beautiful gear mechanism by JSP Math Designs. If anyone else has any amazing mechanisms, automata, engineering projects or just 3D printed trickiness, Please post on the 'It Arrived' forum, we would love to see more.
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Earrings "Swing girl" along with many other creative designs from dora: shpws.me/q0PD pic.twitter.com/LCSBupQMnc