Fridge Magnet Gear Set

Here's a fun set of gears to arrange on the fridge, stack together, make jazz hands, etc.

https://youtu.be/5l7uekqdTGk

The base part has a ¼" diameter x ¼" long magnet that sticks to the fridge, providing a solid pivot point that resists sliding around. Note that the smaller hole is to be left open!

The gears have a smaller, 1/8" diameter x 3/16" long magnet in one side, and an open hole in the other. This open hole is slightly larger and allows for parts to be stacked. Note the side with the “outie” nubbins (that's what locks stacked parts together) is the side with the open hole.

The shim parts have an identical magnet setup as the gears. These are just spacers if you need them under a gear, etc.

There's a crank part and a horn, both get the same 1/8" x 3/16" magnet on the “innie” side.

And finally these pivot parts can be used on top of a base for a slider to pass through. These also get a 1/8" x 3/16" magnet.

This was all printed in PLA, and the hand was the only thing needing supports. I glued the magnets in with loctite. Mind the polarity of the magnets!