Reusable Safety Knife

This is a safety knife that uses standard utility blades that you can get at home improvement stores. It's very much a Work In Progress, as I haven't test printed it yet. Feel free to print it and let me know how it works or if changes are needed.

Your printer will need to be fairly accurate for this, as even though the overhangs are only 30 degrees, the clearance for the cover is somewhat tight (100 microns on each side).

Let me know what you think!

UPDATES:

Uploaded v2 files on 03/23/2017: Slightly lengthened the blade upon which the design is based. This should improve the internal blade fit. If it still need adjustment, let me know. I left the original files up in case somebody wants to play with them.