Hello! I’m using blue painter’s tape as a resist for chemically etching brass. I engrave away the tape in areas to be etched. It works well for large area, but I’m having trouble with fine lines; I think because of tape residue left behind.
Does anyone have experience with settings that will cut a clean narrow line, while burning away the residue?
I know another solution is a lower tack tape; I’m going to try that, but I’ve got a lot of blue tape, so making that would would be nice. Thanks.
Not in any particular direction, it’s just the width of the line that’s the issue. To be clear, I’m engraving on blue painter’s tape. The goal is to completely ablate the tape in the engraved areas. I think the problem is that the tape leaves a residue, which interferes with the etching. So I need a setting solution specific to painter’s tape. (And you’re right, adjusting the speed will be part of the solution. I was just hoping to save myself a bunch of testing)
Not what you asked but have you considered using a paint layer as resist?
There is also another post here about cutting resist on the Aura (for copper), which used polyester film.
With the blue painter’s tape I think the adhesive melting is going to be a big challenge. I wish I had some settings for you to use but I use other techniques for cutting resists. Anyway hoping this is useful at least for the oracal link: