It never smelt so right :)
So I finally did it… I got around to melting down those soft drink cans I’ve been collecting for years. I was going to make my own furnace, per these plans, a modification of the David Gingery Crucible Furnace. But something wonderful happened…
My son bought a kiln and we installed it in the garage. It is supposed to reach slightly over 2000 degrees and that is plenty for aluminum. I began by adding cans one at a time with 18″ needle nose pliars. This causes the gloves to start smoking so I came up with a method where I ram a hole through the crushed can, slide them onto a metal rod like shish kebab, and then they will slide off rapidly when I’m ready to charge the crucible.
Aluminum cans are supposed to be 95-98% pure, but they sure produce a lot of trash when you melt them.
I have upgraded to actual firebrick for the two places where I need to set the crucible dawn, and I have some leather top boots to wear instead of the running shoes. I would also like to get much heavier shirt and pants, maybe leather or canvas.
Once I get enough I will start experimenting with ‘lost foam’ and ‘greensand’ mold casting.