Small Utility Knife

Materials

• PLA
• One M3 nut
• One M3x5 countersunk screw (You can easily shorten a longer one)
• Six cylindrical magnets with a diameter of 3mm and a height of 2mm
• One 52mm utility blade with a 7mm hole in the middle (I used these Wolfcraft 4313000) 

Print (Important)

You will need to add a print pause at a height of 2,6mm (or at the 13th layer if you use 0,2mm layer height), where you can place (just lay down, press or glue) the magnets in the case. Then you can continue the print.

Here you can see a video of how to set a print pause in Cura.