A 3 set Venn diagram print to help visualize how it all fits in. No outside box for the universal but put it on an A4 paper and there is your box!
I used cut up matches or any other small item to fill it in.
Can be resized in your slicer if you need a bigger one too.
Material doesn't matter, nor does infill.

Let me know how you get on :)

Creality

Ender 3

No

Doesn't Matter

Doesn't matter

I have difficulty seeing and solving these. I used a lot of cut up matches and this diagram to help me visualise the data.