Stainless steel can work too, and creates a much brighter look, but it takes much longer. This one ran for a couple of days and the coating isn’t as even as the others I’ve tried. I also used larger/longer screws, which I don’t think worked as well as the 1.25″ deck screws.
Here’s the process I used to get the results in the picture. I’m sure there are many ways to do this and I’m still trying different variations, but I’ll describe what has worked so far. I’d encourage experimenting, just be careful when working with alloys that contain lead.
What you need:
- 3D printed part
- rock tumbler
- screw tumber media