Free 

Redesigned after the 3D model of Gard7, Keychain pill box. https://www.printables.com/model/273336-keychain-pill-box
Longer model to accommodate more pills and more tolerance on the thread. I have designed a narrow model for small pills and a wider model for wider pills. I printed it with ABS filament, 0.20 mm layer thickness and 15% filling. No support needed.











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