Tumbling process with copperFill parts with brass screws. Couple things to notice. Over 6 hours of tumbling blend the layers but some of the artifacts still remain. Noticeable ‘byte’ marks on the surface. There’s a lot of metal flakes/particles left over from the tumbling process. After a quick clean up the parts still remain golden/copper like.
Are the flakes from the print, or the screws? They look big enough to clog a nozzle.
The flakes are most likely from the screws. Near the edges and bottom of the barrel had tiny bits of materials. I’m guessing those are from the print.
My daughter has a nice rock tumbler and what we’ve seen is that there’s is an obvious reduction in size for tumbled stones as you go through the various stages. It looks like the part has maintained much of it’s shape and size at least.
What about using tumbling material that might be less rough to the object and not take as big of bites out of it? I know that’ll mean probably triple the tumble time, but will at least get you close to a smoother finish.
Stainless steel ball bearing?
There’s steel pin tumbling media that would probably be more durable and wouldn’t leave the bite marks.