Ideally, for jewelry, you’d use the print as a base layer that’s then plated or as a positive for a mold. There are some biocompatible resins but you’re still making assumptions and compromises with it.
Especially for a ring, any finishing layers will wear off directly on the skin so you’d have to account for that. Highly recommend using the print to make a silicone mold that you can then make an epoxy copy of it. Or a wax copy to then create a metal copy
Multiple steps, I know, but for safe jewelry, printers are better as a starting point tool instead of a finished product generator
It just took a collection of bombs and careful aiming. We as a species are really good at throwing things pretty accurately and at messing with controlling fire
I kid, it’s awesome we were able to make it happen and the wealth of knowledge gained by doing it