Glass Casting & Coldworking

Cold glass can be carved, cut and drilled to create gorgeous pieces with unique surface textures and shapes. Kiln cast glass allows  you to turn wax sculptures into solid glass art pieces, or put a relief into a solid piece of glass.

Current Classes at a Glance

Please see the Class Index page here.

Upcoming Classes

Kiln Casting Glass Sculpture I

Dive into the ancient art of lost wax casting. Students sculpt a small wax form used to make a mold for a unique reproduction. You will learn techniques in working with wax, making plaster and silica molds, de-waxing, firing the kiln, and annealing the glass. Students complete 2-3 fully finished projects.

One-Day Cold Working Workshop

Join this one-day workshop for an introduction to our glass cold shop, designed to prepare students/you for the Cold Shop CREATE program assessment. We’re demonstrating safety, proper tooling techniques, and machine maintenance. Using glass blanks, we’ll teach the tools and techniques of sawing, drilling, carving, sandblasting, grinding and polishing, and gluing glass.

Glass Cold Working & Engraving

Learn to grind and polish glass in our expanded cold working space. Using glass blanks, experiment with techniques in cutting, drilling, carving, and sandblasting. We’ll introduce lathe working and provide the chance to complete at least two ground and polished objects. Returning students learn advanced techniques.

Dry Plaster Casting

Explore techniques for using repurposed window glass to cast everyday objects using dry plaster. You can cast your hand including your wedding ring or use child alphabet blocks to spell a message. We encourage students to bring things you want to try to cast – we promise they will not be damaged. The finished product will be ready to hang using the integrated hanging system.

Youth Cast Glass Sculpture 

Explore the use of clay and wax to create a positive form such as a starfish or other object and transform it into a glass sculpture. Students learn how to sculpt wax or clay and create molds using plaster and silica. Molds will then act as vessel for glass to be melted into by using a kiln as a heat source. The end result will be a singular object in colored glass.

Future Classes

Glass Cold Working & Engraving

Learn to grind and polish glass in The Crucible’s expanded cold working area. Using glass blanks, you will experiment with glass cutting, drilling, carving and sandblasting techniques, as well as lathe work. You will be able to complete at least two ground and polished glass objects. Returning students will learn advanced techniques.

Kiln-Cast Sculpture

Learn the ancient art of lost-wax glass casting by sculpting a small wax form and making a mold for a one-off glass reproduction which you fire and anneal. You will come out with 2-3 finished pieces.

Dry Plaster Casting

Explore techniques for using repurposed window glass to cast everyday objects using dry plaster. You can cast your hand including your wedding ring or use child’s blocks to spell a message. Bring something you want to try and cast – they will not be damaged. The finished product will be ready to hang.

Kiln-Cast Sculpture: Reverse Relief

Kiln cast reverse relief is creating imagery inside of glass. You will carve hardened plastic-silica, attach it to the inside a mold and melt glass into it. When complete, one looks through the glass to see the imagery. This gives an atmospheric and mysterious feel to your work. An introduction to cold working techniques is included.