Battery case for hearing aid batteries (312) remix
thingiverse
https://youtu.be/YkBU0nzgtnE Based on the model made by Thni : - Reduced size by turning battery protection inside - Visual control of how many batteries left, - easiest to manipulate by adding spurs - Added lock-position of the cover, to avoid losing batteries when they are on a keychain or in a pocket - adapted fixation with an harmonica-type screw and a pen spring to hold pression to the lock system.
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