For the artist who wants to make sculptural glass, open-faced kilncasting offers a relatively simple and direct technique. It also serves as an introduction to principles used in more complex kilncasting methods. The process involves creating a relief sculpture by investing a model in a refractory mold material. Once the mold is made, the model is removed, leaving a void to be filled with glass. In this lesson, you will learn considerations for preparing the model, tips for making an open-faced mold and calculating the amount of glass needed to fill it. We'll also cover how to fire the mold and the glass and how to finish the work after firing.
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