Design inspired by the Laffs Dynamics UAMD, but I handmade the step file myself.

I also created a snap fit sheath that stands upright. The sheath sizing ensures that the sharp point is not compromised.

Scale up or down as needed. My hands fit the 150% scale. The print orientation is shown in the build plate picture.

These are the settings I used:

Knife: 8 walls, 50% gyroid infill

Sheath: 4 walls, 20% gyroid infill