Wax cast with heatproof grog core
Wax air channels for escaping air when molten metal poured into mold.
Making a new plaster cast
Sealing the new cast
Adding wax pour channels
Pouring molten bronze
Powerful furnace is lit
Pouring molten bronze into cast
Oven created around mold to heat/evaporate the wax
Removing the mold after bronze cools
Raising the mold from the pit
Smashing the mold to reveal bronze
Cutting off all the air channels