I love the original design but I wanted a more "sober" version to bring with me while fishing.

I'm posting it as a remix to credit the desig that inspired me to make this utility knife.

Insert some filament pieces in the holes along the knife handle to facilitate alignment.

In the glued version the blade slot is slightly oversized to allow for the use of thicker blades. You can either fill the gap with glue or use some paper pieces as shims.

NEW changeable blade version. Use M3 nuts and bolts to clamp the blade in the knife. Please keep in mind that plastics (especially PLA) suffer form low temperature creep. Therefore the grip force on the blade will decrease over time and you may need to tighten the screws every so often.

SAFETY DISCLAIMER: This is a plastic knife with a very sharp blade. Please don't hurt yourself. Print it and use it at your own risk.

02/07/2022 Edit: Updated to version 3.1

02/11/2022 Edit: Updated to version 3.1.1 Added a new design that allows to change the blade using M3 screws and nuts.