Do not overestimate the competence of the Internet when it comes to troubleshooting 3d-printed parts.

Overture PETG and PLA are good about four rolls out of five. If things suddenly change and suck ass it's nothing you did, it's their quality control.

There's a vast legacy body of dead bullshit on Thingiverse because Thingiverse has been mismanaged for more than a decade. There's a vast thriving community on Printables because Prusa decided Thingiverse was too embarrassing to deal with. Both communities suffer a continual brain drain to Cults because people start getting greedy at about the thousandth download and put their shit behind a paywall.

Anycubic PETG and PLA cost barely more than Amazon Basics and are of vastly higher quality. They're also regularly on sale. There, see, you never have to experience the heartbreak of Overture.

All of the filament you will buy will be Chinese. Prices may well go up. The good shit is ProtoPasta, which is made in Oregon. It's spendy but of impeccable quality. Maybe less spendy now, comparatively speaking.

Nobody has a good support algorithm. You will need to learn how to draw supports for anything even vaguely challenging.

PLA is about four times as easy to work with as PETG. PETG is substantially more durable. ABS is only necessary for high temperature shenanigans; as a material I hate it.

PLA should be glued down on a smooth sheet. ABS should be glued down mercilessly on a smooth sheet. PETG should be printed on a textured sheet. You should wash them with soap and water occasionally but much less often than you think. Don't resort to IPA or anything dumb; see above about internet.

Concerns about VoCs out of 3d prints are greatly overblown. ABS stinks but the level of toxins it kicks out are around a tenth what you get simply living with a laser printer. That said, an enclosure keeps temperatures more stable and it matters if you're printing anything more exotic than PETG.

If you're replacing nozzles more often than once every six to eight months you're doing something wrong. And don't worry, you'll do a lot of shit wrong. But eventually you'll realize that all the advice you're reading is also wrong.

The "makers" will convince you that you should do everything in OnShape. They are fucking dumbasses. The "professional makers" will give you coupon codes for OnShape while doing everything in Fusion. They are dire fucking dumbasses. You will flail around for a while trying to prove me wrong and then you will do what everyone with half a clue eventually does, which is succumb to SolidWorks. It will cost you like $80 a year from Cleverbridge, and then you will spend two months' tuition at SolidProfessor getting through the first and second levels of self-education. Seriously. Start there. I had a fifteen year autoCAD education and experience with Solidworks 1.0 backintheday and I couldn't so much as draw a cube in SolidWorks without going through basic training. But once you go through basic training the world is your oyster.

I would say I print out maybe nineteen designs of mine for every one I print for someone else. Everyone's designs are so bad.