Ball Bearings Gear keychain
Description
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 :)
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