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Lost Wax Casting is an ancient form of jewelry making. First a design
is made in wax. Then it is mounted in a flask and surrounded by
investment. When the investment (like plaster of Paris, but more durable)
hardens, then the flask is put into a burnout oven and heated until the wax
melts out. This leaves a hole in the investment that is exactly the size
and shape of the wax design. Then the flask is mounted in a casting
machine. Gold or other metal is melted in a crucible mounted against the
flask. When it is melted to the right temperature, it is flung into the
flask by centrifugal force and it hardens into exactly the size and shape of the
original design. Then it is removed, filed, sanded, polished, and prepared
for use in jewelry. There is a lot more to it than that of course, but
this gives you a good idea of how Lost Wax Casting is done.
Click here to see Jewelry Designing in
progress
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| Here is a slice from a ring tube of carving wax. It is a hard, toolable wax that allows carving of fine detail. | Now it has been given it basic shape and still needs cleanup work. The checkerboard cut amethyst will be set when the ring is ready. | Here it has been cast and the sprue has been cut off, but it still has to be filed, sanded, and polished. |
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| After polishing, we will make a mold of it so it can be
repeated. We will inject hot injection wax into the mold and pull a
wax copy that is ready for casting. Then we set the gemstone and Voila! We have a beautiful new piece of jewelry! (This one is a checkerboard cut Rhodolite Garnet.) |
This 3.76 ct opal was in a flimsy ring, so we designed a more protective ring to the customer's taste. Here is the hand carved wax. |
Here is the finished ring. Wow!!! See other designs we've done for customers by clicking here |
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| Here is my design custom carved by a master wax carver - great detail! |
Here is the finished pendant - a fisherman's dream! Snook (also known as 'linesider") is one of the best fighting and eating fish in Southwest Florida! |
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| Here is the bracelet blank. | It is sliced to the right thickness for the bracelet we want to make. | Two slices are joined. |
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| It is shaped and hollowed. The wax is actually translucent when it gets thinner. Note the join mark (near the top of the photo) from joining the two slices together. | This is the silver casting. | This is the rubber mold made from the polished casting. |
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Click here to see our 18k Gold & Sterling Silver designs |
| This is the wax made from injecting wax into the rubber mold. | Here is the finished bracelet with 18k gold accents. | |
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| Here is the ring she didn't like, so we designed a more classic style for her. | Here's the wax ring blank - sliced from a wax tube | Here's the carved wax |
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| Here's the raw casting. Note the
"button" on the bottom. We have to cast more than enough gold to allow for shrinkage when cooling. The extra piece is called the button. |
Here is the casting cleaned up and filed. The "investment" (a type of high temperature jewelers plaster of paris) has been cleaned out and the button cut off |
Here is the polished casting ready to have the diamonds set. |
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| The baguettes are set and the seat is cut to set the center Diamond | Ta Da! A 2.07 ct center Diamond, a .21 ct and a .22 ct baguette in 14k white gold |
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| First a sketch is made. The ring is
going to be an M with the initial D on it with a Black Star Sapphire |
Then the wax is carved | Here is a side view of how we make a special shank to resist spinning |
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| Here is the D with the Black Star | This is the raw casting before finish work is done to it | Here is the raw D with the Black Star |
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| And here's the finished ring! |
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Paradise Jewelry
The Friendliest Store In The World!
5455 Airport Rd. North
Naples, FL 34109
Toll Free 877-591-2645
Copyright 2000, 2001
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