Example of cuttlefish piece right after casting

Level: All Skill Levels
Requirements: Comfortable with torch
Program: Summer
Status: Closed
Length: 1 Days
Tuition: $ 125
Materials: $ 50
Date: February 16, 2010 - February 16, 2010
Time: 10:00 AM - 5:00 PM
Location: Metalwerx

Learn a straightforward and easy casting technique which can quickly generate finished jewelry/small objects without a lot of equipment. Students will be able to carve and cast 1 - 2 pieces in silver with time left over for sprue removal and basic finishing.

A little history...

In Mediterranean countries, the use of cuttlebone as a mold to cast small objects has been widespread for centuries, and it was once common to see strings of cuttlebones hanging in any jeweler's shop. Today, lost-wax casting has completely supplanted the cuttlebone technique for large-scale reproducing purposes. However, just as painters found new ways to use their materials after the invention of photography, so cuttlebone, no more tied to the reproduction of models, can be explored as a creative tool.

It is the growth layers of calcium in the bone that are useful for jewelers as molds in casting molten metal. The varying densities of the layers react differently to the metal pour, and the result is a wavy texture (and funky odor) as the bone smolders and burns. The effect is well worth the stench though as it is serendipitously reminiscent of ripples or low tide patterns in sand or mud.

Materials & Tools

The $50 materials kits includes 2 large cuttlefish and an estimated 2 oz of sterling silver for casting (or as much as the fee will cover at the time of the class).

Students are encouraged to bring

• Any scrap silver they might have, as this material can also be used for casting.