Mini Charcoal Furnace

Step 8 Furnace tools

Crucible: Is the container that holds the aluminium parts before melting them and for casting them in sand or just into an aluminium ingot. 
The professional ones are made from different materials such as clay graphite, silicon carbide and more. They can be purchased from as little as a few bucks to couple of hundred. 
The crucible I used in this instructable is worth about 2$ - such a bargain..he..he.
In retrospect:
I don't recommend using tin cans at all, it can be dangerous, I got a few ingots out of it but one corn can I used broke inside the furnace with big holes.

 I made the crucible from a used can of beans v shaping the lip for easy pouring, I drilled 2 holes to the sides of it and placed 2 bolts to act as lifting pins.
On the bottom I tied steel wire with a loop at the end.
The lifting fork and hook I made from 5mm construction rebar that I welded to an unused bathroom hook.
I also bought a 94c muffin tray (another bargain) to make some ingots.

The rebars are long enough to keep a safe distance from the boiling aluminium and your body.