Economies of scale exist, regardless if you like them or not. You have a die for a 2nm processor in your garage? Gonna take a garden trowel into the backyard and dig till you hit a vein of rare earth metals?

Rugged individualism is a romantic concept, but not well supported by human history. If you make everything by your own hand, the sum total of your output will really just barely be enough to keep you fed.

I can’t even really fathom this response to the idea that you shouldn’t 3D print screws. It’s like I kicked your dog or something.

If you want to make your own screws, go ahead, make your own screws, but even then the analogy still holds well: don’t 3D print them. Use a tap and die set.

Tools exist to make screws and a 3D printer is the most expensive, slowest, and will produce inferior screws compared even to the existing make-screws-at-home options. On top of that, if, I don’t know, if you’re in an apocalyptic post-socoiety breakdown where logistical networks collapse… And you’re subsisting on backyard chickens… Still think you want the tap and die set for the purposes of screw production. No electricity, no files to get corrupted as your computer rusts out, essentially no maintenance required. Easier to transport.

Just because a technology is new and flexible doesn’t mean it’s automatically the best way to do all of the things it can "technically* do.