There are many ways to make a ring, you can fabricate a ring, taking metal shaping it, and bending and welding it together it to make a ring.
But I am going to talk to you today about another technique it is called lost wax casting.
It is a process where a Wax model is then transformed into a metal item that becomes the piece of jewelry. This technique allows a great deal of freedom in the shaping of the peace that will become the finished piece of jewelry.
These are the steps.
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You start with a blank piece of a tough wax that can be carved and shaped.
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You select a Stone to be fitted into the Wax to make the beautiful piece of jewelry.
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You carved and very carefully fit the stone into the Wax model.
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You attach Wax feeding lines that are called a spruce system and this is placed onto a rubber base that you put a metal can officially called a casting flask around the Wax model and then pour plaster around the Wax model when the plaster sets up you remove the rubber base that leaves a funnel shape in the plaster.
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The casting flask is placed in a kiln and taken up to 1300° to destroy the Wax model and leave a negative in its place that can accept molten metal.
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You placed the casting flask in a centrifugal casting machine with a melting chamber, called the crucible that you place your metal in to melt, that metal then can be centrifugal cast into the very hot casting flask.
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Once the metal has cooled in the casting flask, the plaster is removed.
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You have your raw casting in the metal of your choice in this case 14 karat yellow gold still attached to the spruce system.
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You then saw the cast ring off of the spruce system
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Using files and emery cloth, you smooth the surface of the ring
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The ring is then pre-polished getting ready for setting the stone.
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The stone is carefully set using steel tools, and a hammer to move the gold.
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You have a new custom piece of jewelry finished and ready to wear
Ross Goldsmith
224 Sir Francis Drake Boulevard
San Anselmo, Ca 94960
Phone: 415-458-1770
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