Sring Loaded Bottlecap Gun
thingiverse
This is a spring loaded Bottlecap gun. It uses 3 of the springs from the Ender 3 bed. (It's a good thing to replace them anyway ;) . Otherwise you will only need two 3cm wood screws and two 1cm wood screws. The Trigger design was inspired by 3Deddy's rubber band powered bottle cap gun.
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