You can melt down almost any kind of aluminum—cans, even—but a piece that has already been cast (such as a water pump, wheel, or intake manifold) will have an alloy that's better suited for casting.

Watch molten aluminum transform into stunning custom shapes with this complete DIY casting tutorial. From melting scrap metal safely to pouring into molds and revealing perfect casts, learn pro ...

You can melt down almost any kind of aluminum—cans, even—but a piece that has already been cast (such as a water pump, wheel, or intake manifold) will have an alloy that's better suited for casting.