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

Unmanaged switches are cheap and useful. Managed are better but not everyone has the need for them