That's the best thing ever, I wrecken if me and my father made a furnace like yours we could cast our own brake and clutch leavers for our bikes as well as many other things
I used a mix of sifted sand and clay (kitty litter basically) and used an old bowl for the shape. I made up some wooden boxes and just tried a few times.
Ta miska wygląda super. Lepiej nie używaj jej do produktów do jedzenia - aluminium jest niedobre dla zdrowia. Czekam na następne ciekawe pomysły. Pozdrowienia