I would like to put a decorative grill on the inside of my bangles
& pendants & inside my heavier ring bands.
Mary, Mary, Mary.... Some people just can't ask easy questions.....;}
Putting grills on the inside of bracelets, pendants and rings are
three different things, actually. And then the question is WHAT
bracelet, WHAT ring, etc. And - what production? Let's suppose you
have a hollow bangle bracelet. To make one bracelet you can make the
outside in wax, put a pierced plate on the inside of it, and cast it.
Problem is, there's no way to finish the plate in the details,
there's no way to clean inside the bracelet (under the plate) or
remove the stray air bubble. There's also no way to mold it, as the
rubber is bigger behind the plate - you're not going to pull the
hollow bracelet part through your piercing successfully. The only
practical way to do it is to make pierced plates and solder them in
place. You can use wax if you want but as you say it will have to be
fairly stout to cast it, plus you need to pay attention to spruing.
For a model it will have to be two part - the body with a place for
the plate, and the plate itself. It's a very elegant way of finishing
off a piece of jewelry, but I'm afraid there's really no shortcut.
Having a plate on a bracelet with a scruffy raw casting behind it is
worse than no plate at all. Ideally it should be a window to a