This is the progression of casting our jewelry from start to finish.

Sprue in sprue base and casting flask. Preparing for investing.
Pouring the investment.
Preparing for burnout.
The burnout / in the kiln, where the wax is burned out, hence the name, lost wax casting.
Pre-heating the crucible.
Adding metal to the crucible.
Flask in place.
After the metal is turned molten, the machine is released and the centrifugal force inserts the metal into the investment, this is the red hot metal cooling.
Quenching the flask, submersing in water to release the investment from the cast piece.
The birth of a ring.
Final cast pieces.