Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:4935046.

This remix adds another slot to this design. That slot allows a piece of velcro to loop through the knife holder. This allows the knife to be strapped to your leg or arm.

This needs to be resized to fit your knife. My dimensions were: X 10.4mm, Y 119mm, and Z 43.6mm. At this size, a 2 inch piece of velcro would fit through the strap slot.

Print vertically (like the spine of the knife is resting on the bed and the edge is facing up) and don't use any supports.