There’s things you should keep safe, birth certificate, marriage license, car titles, etc.

Buy some sort of paper storage thing and keep everything safe there.

https://www.ready.gov/sites/default/files/2020-03/fema_safeguard-critical-documents-and-valuables.pdf

Ideally, it should be something that you can grab and bring with you in an emergency, but not something easy for someone to steal. Something like a fire safe that has a cable that can wrap around something secure, but relatively easy to unlock in case of disaster.

Write it down on paper and keep it safe. You don’t have to label it with what it is.

Just don’t save it electronically.

Yes

Infill is different from top layer shells. The infill is a different pattern from the top and bottom layers, and a different pattern from the walls.

Usually the top/bottom shells are set to 5 by default, and the walls are 2. If you bump the top and bottom layers to something like 10 or 15, they’ll be much thicker before it switches to the infill pattern.

I would try adding more top layer shells. That way there’s more plastic between the surface and the first infill layers.

No, that’s the problem. The algorithm is NOT good enough to determine if it is printable.

People assume this and upload tons of crap models.

Nearly every 3d print that has an AI generated tag also has no actual pictures of a printed part.

I think people just AI generate, than assume it’s fine and post it, but never actually print it.

That’s why I keep the “no AI” filter on, really cleans up the junk posts.