This type of paper shredder has moulded teeth that keep the rotating drum clear of the paper strips it is generating. Those teeth are part of the housing, so when they break there is no practical replacement part available to keep the shredder working. If missing, paper gets wedged into the chopper slots and will nearly destroy the machine as they try to push it apart.
These little teeth can be hot-glued in place quickly and will serve to keep the slots clear and the paper shredder running for years longer.
If two teeth break off side-by-side, then two replacement teeth won't fit beside each other, so you'll need the double tooth. If more break off, well, you'll probably want to pull the .STL into a CAD program and multiply the teeth further… or buy a new paper shredder.
Working well for me now for several years! This latest model is printed in a flat orientation which enhances the tooth strength compared to the up-right orientation of the print setup as shared on the old site.
Happy Shredding
OriginalDesign: Nov2018
The author marked this model as their own original creation.