This cutter is simply to used. The "open" position is covered by magnetic force, so 4 neodymium magnets (10 × 7 × 2 mm) are needed. The cut is provided by one blade (18 mm) of snap-off utility knife.
Printed from black Prusament PET-G.
No supports, infill 15 %, 0,15 mm layer
The author hasn't provided the model origin yet.