BALLPOINT PEN MECHANISM
by ineichen · from Printables
Personal use only
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↓ 229 downloads
Gadgets
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PLA from £6 inc. UK delivery on letter-sized prints. We slice, print on a calibrated Creality K2 / Bambu A1, QC and post.
Ever wondered how a ballpoint pen mechanism works? This is how it works. Simply print out these parts and have a look...
