I had an old Drill/Knife/Chisel universal sharpener, called "PlasPlugs Compact. The Company still exists, but does not build the sharpener anymore. They do not have spare parts or could me where to get these, so I tried to make my own. I needed 3 tries to make one, that actually fits. So far the design works, but I still consider it Work in Progress. I am not an Engineer, so the Treat-part with the plastic nut is not to any specs, I have no Idea how to make a treat, that actually fits a real metal nut...
There are two Versions, one is with the wrench, the other only the Wheel-Assembly and nut.
Printing: I print this with 100% Infill, 0.1 mm Layer, no Support and Adhesion on my Anycubic I3 Mega.
Slicing Software is Cura , actual version is 4.21.