>>937537 (last bread)
I didn't know wicca was anti-male. And excluding men isn't anti-male. I mean, a female bathroom isn't anti-male. It's just "no-man's land". So this jumbles together several issues that don't seem to go together.
Honestly I think there are reasons in many cases for large scale production. Cars for example. There's a real skill to it. Look how much trouble Musk is having with steel-welding and increasing production of his Model 3.
Sometimes 3-d printing works well, sometimes machining down a block works better. To make something 3-d printed as strong as metal block requires some hi-tech processes.
These are engineering questions. If you think you have a solution, evaluate it technically. It may work and make you lots of $$, anon.