Waxes
Waxes, whether printed, hand-made or mold made, are cleaned and attached to a wax stem by sprues, creating a wax 'tree'. These stems create a channel which allows the metal to flow to individual pieces during casting.
Investment
The trees are placed in a flask which is then filled with a plaster-like material called investment. This investment is left to harden.
Burnout
The invested flask is then placed in an oven, allowing the wax inside to burn out creating a cavity in the impression of the wax tree.
Casting
The technique used varies by metal, but the process is the same: the metal of choice is melted and poured into the cavity of the flask, filling the wax impressions.
Cleaning
After allowing the metal to cool, the now-casted flask is washed and cleaned to remove any trace of investment on the castings.
Cutting
The sprues are cut, separating each piece. The pieces are then carefully inspected for imperfections and are ready for finishing.
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