shredder with inserts
thingiverse
This is a revised version of my shredded 5 sq design, with cutters modified to accommodate metal cutter inserts. The inserts should be able to handle harder materials as a result. The inserts can be made from rectangular metal, but it's worth considering grinding the edge to achieve a more angular shape, similar to what I've modeled. You can thread holes for 6-32 screws since they're the right size for this design. An animated simulation illustrating the relationship between the insert and cutter is available here: https://youtu.be/QEZa5IPZ8Rk
With this file you will be able to print shredder with inserts with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on shredder with inserts.