My first design I had the cutter on its side, however it takes up more room in the drawer.  I changed it so you can save space in drawer.

This is based on my fiskars 40mm rolling cutting knife with room for two packages of replacement blades.  The fiskars x-acto knives I have use a bigger handle so I made a matching holder for those.  They are really similar to so many other x-acto style gridfinity holders that I am just putting that one here as well.

Printed in PLA, 3 walls, top and bottom layers.  Suggest using cubic infill at 10%.  They are sturdy, so you can cut down on infill to print faster.