My first furnace
Click on any image to see a full size picture.
After the charcoal burnt out I inserted the propane burner.
It looked hot enough to melt so I put in my crucible & a small piece of scrap
aluminium which melted readily.
I had prepared a simple mould by shoving a socket
extension bar into a tin of oil bonded sand.
Sadly, due to my excitement, I dropped the crucible onto the concrete below.
I beat a hasty retreat as the concrete popped & banged, throwing molten aluminium into the air.
You can see how the concrete spalled under the aluminium.
Not a total disaster though. I did get some aluminium in the mould.
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