Magnetic Gear Links

thingiverse

Based off of the Magnetic Gears found [here](https://www.printables.com/model/570275-magnetized-gears). In the magnetic gears, the orientation of one magnet rotates twice as much as its centroid rotates about the centroid of the other. This, and the presence of two stable and unstable equilibria alternating at 90 degrees, allow the unstable equilibrium to be treated as the stowed state and stable equilibrium as the deployed state for 180 degrees of rotation. The gears are then incorporated with links, where only one quarter of the gear is required to maintain rotation without slipping. A hard stop is often incorporated to ensure a more stable equilibrium in the deployed state, as well as additional magnets to deepen the energy well. The additional magnets here are so strong that they cause rotation about their edges, resulting in additional stability. Thus, this prototype has two stable equilibria, and can rotate from -180 to +180 degrees. Similar to the gears, this prototype makes a great fidget toy!