Folding Utility Blade (with video)

I HAVE A NEW VERSION ON MY PROFILE - VERSION 3.0.  There are some changes I made that make it function better and make it a lot stronger.  Please print Version 3.0 instead of this version! 

UPDATE: I have added a second print profile labeled “UPDATED.”  This profile should be easier to put together (looser tolerances) and fit slightly larger utility blades. If the first print-profile is too tight and hard to put together, print this UPDATED profile instead.  The STL files you can download are still the first/old version.

PLEASE USE WITH CAUTION. THIS IS A 3D-PRINTED KNIFE AFTERALL. IT SHOULD ONLY BE USED FOR LIGHT DUTY APPLICATIONS.  BE MINDFUL OF THE BLADE AS YOU OPEN AND CLOSE THE KNIFE.

This Utility Knife folds like a switchblade. Has magnets to hold it in the open and closed position. Can hold an extra blade.

It's best to print the “blade holder” with PETG to make the spring last longer, however PLA will also work. The rest can be printed in any material.

There are two different versions - one-magnet, or two-magnet. The one-magnet version requires 3 - 8mmx2mm magnets. The two-magnet version requires 5 - 6mmx2mm magnets.  The one-magnet version operates smoother, however the two-magnet version has better holding power and a more satisfying “click.”

These print setting work best: 0.2 layer height, 3 walls, Classic wall generator (don't use Arachne), 100% infill, and a 38° Infill Direction.

Assembly instructions below in the youtube video….