box cutter with self-retractable blade
Description
I've designed this small cutter with the main purpose of opening boxes! The blade is self-retractable so the cutter is super-safe. The mechanism is completely hidden in a printed shell. You need 2 non-printed parts in order to build the cutter: - a utility blade with 61mm length - an M4x10mm screw I've uploaded the assembling steps images.
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