I wanted to grow my bee-friendly-area of my little apartment garden, so needed to get the seeds from the plants.
I needed to sort seeds from the dry plant residue and saw the empty spool in my workshop.
You can use it for whatever, I made an OpenSCAD file for making sieves with different hole diameters for you to try out.
It is inspired in function by something like this: Image of Sieves
Print at the "Seedsorter_container.stl" and up to three Sieves of your choice. You should be able to fit 4 models in total on the plate. The Auto Arranger from the Prusa Slicer might put a tool path outside the print area, but I just moved the models a little closer together.
The print file that I've added is a container and three sieves, with 2, 4, and 6 mm size holes.
I chose to print with 5% infill and largest layer size for faster printing.
Once printed, mount the container in the bottom, then stack the sieves from smallest diameter (bottom) to largest (top).
Intended usage:
1: Add material you want sorted by size (on top)
2: Shakey Shakey
3: Dissassemble to extract sorted material at different levels.
To edit the bottom part, that I have used as a container, all code is in the container_bottom() module.
The author hasn't provided the model origin yet.