Let's see, it is something simple, but effective, a simple funnel to filter the poop when we are grinding it to give it other uses such as melting it later.

In my case I use it to remove the smallest parts for the thinnest molds I have while the largest pieces will go for larger molds all purchased on Aliexpress. I store these in generic tappers or cereal boxes.

You can try the test template by changing the % infill to make the grid larger or smaller according to your taste and then print it in its entirety. You can also change the size without problems.
Since the grid is linked to the % infill you can change the diameter of the funnel without problems to adapt it to your needs =D.

May your poop be recycled well ^^.

P.S.: Do not use the oven or shredder that you use for food, food and microplastics should not be mixed, for your health and that of your family, poop is not suitable for human consumption.

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But don't forget to see projects from other colleagues to reuse your poop =D.

Mold example Skull
Cheap Grinder example

Video example: