Eventually the filament will get coated and sealed in a nice, thick layer of tar and protect your lungs from the microplastics! You just gotta break it in a little bit.
Melted plastic, plastic fumes, and microplastic particles already aren't great for you, and 3D-printing introduces a bunch of ways for them to be introduced directly into your body.
I worked in the 3D-printing industry for a long time, and I'm confident whoever does my autopsy is going to get a clown-style poof of confetti.
Why does this alone of all things make me want a drag this long after quitting!? Part of it has to be the curiosity of whether you could even get them all lit.
Hope no more, because both things are already quite possible. Metal printing 3D printers are still prohibitively expensive — like, go to your bank and take out a mortgage levels of expensive — but they do indeed exist. And you can print a lower receiver for an Armalite quite easily which is the only serial numbered and tracked component in the US. Upper receivers are available via mail order because they are not the regulated part (except in certain states), so have at it.
Lighting them all evenly at once is another engineering task. I propose an overheated pan or other metal surface because everything with open fire gonna suck big time.
"500 cigarettes"