3 Position Switch
thingiverse
This is a 3 position switch I made for a home project, a fan to be more specific. It uses 2 micro switches as the contacts. Demonstration video on YouTube here: https://youtu.be/Kb2bzrmq4_c Parts: 1) 3D models 2) 2 micro switches (These can be found in an old microwave oven or online) 3) 1 7.5mm ball bearing or any sphere close to this size 4) 1 9/32"x1/2"(7.12x12.7mm) spring or one close to this size (Adjust the spring spacer model size if spring is to stiff) 5) Super Glue (Liquid type works best) Note: The spring and ball bearing must be under 8mm diameter or they wont fit. Test the spring and ball bearing before gluing. There are two types of micro switches in a microwave oven, normally closed and normally open.
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