This thing is a full 3D printed mini paper shredder !

It can actually shred small pieces of paper and transform 5 cm wide paper into small strips.

Even if it works, it can be improved in many ways (size, tooth shape...). Actually, it is more of a proof of concept of this idea.

Please note that there is tight tolerance that have been selected especially for my setup and parts might not perfectly fit with yours.

ELEGOO

ELEGOO NEPTUNE 3 Pro

No

No

0.2

Gyroid 30%

It has to be printed in PETG or ABS due to the needed force to shred paper.

PLA with thick walls and high infill density might work.

Everything can be printed without supports, even the axle.