Thingiverse
Ball Bearings Gear keychain
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DISCLAIMER : You must have two ball bearings of 8mm (outer diameter), 3mm (inner diameter) and 4mm (heigth) in order to assemble this keychain !
I wanted to design my keychain as I think the other ones are too big and rely on 3D printed axis, which are often weak and don't allow gears to spin well...
I came with this design which I find pretty good :)
I wanted to design my keychain as I think the other ones are too big and rely on 3D printed axis, which are often weak and don't allow gears to spin well...
I came with this design which I find pretty good :)
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