I am considering getting some etching done commercially for the purposes of making champleve enamelled pieces with. However, I want to make sure this is going to be feasible before I go ahead with it, as I’ve never done it before.
The thickest copper the company I am looking to work with use is 2mm, and they have said 0.5mm is the deepest they can go with the etching on either side of the sheet. They have also mentioned the undercut, which I intend to design around.
I can’t find a decent explanation of the undercut or how it would impact enamelling anywhere. I’ve been checking in books and online. So my questions here are:
Is 2mm with 0.5mm deep etching enough to work with properly with enamel?
Does the term undercut refer to an even eating away at the walls of the piece, or is it going to lead to the walls being thinner at their base?
Will the undercut lead to the enamel cracking, and what can be done to prevent it?