Last night I made my first attempt at carving aluminum. I had a scrap piece and thought I’d make a 40mm diameter coin. At first it was going to have text, but after lots of warnings I drew a Mickey Mouse head instead. Using the default settings in Easel for a 1/16" bit and aluminum it took about 4 hours, then my right Y belt broke and the bit broke soon after. I assume the belt break caused extra load on the bit because it seemed fine for a long time before that.
The surface finish seems pretty good, it looks worse in the photo because the light really enhances the lines. I was wondering what others thought. I was also wondering about any post processing steps to polish it up, do I need to sand, then buff? I’ve also got a rock tumbler and was wondering if anyone has tried a home brew tumbled finish? Someday I’ll take a spare piece and put it in the tumbler with plain old sand and water and see what happens.