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Why do sculptors use clay to make preliminary models?
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Sculpture
Visitors viewing A Subtlety, or the Marvelous Sugar Baby, a sugar-coated polystyrene sculpture by Kara Walker, 2014, part of a temporary installation at the former Domino Sugar Refinery in Brooklyn, New York.
Sculptors use clay to create preliminary modelsâoften referred to as bozzetti or maquettesâbecause its plasticity allows for a fluent, immediate, and additive process of building form from the inside out. Unlike carving, which is a reductive technique, modeling with clay enables artists to make corrections easily as they develop their designs.1234
These preliminary models serve several practical purposes:
- Design Visualization: They help sculptors realize and refine the arrangement of main masses, proportions, and axial structures before committing to a final, more permanent material.54
- Casting Preparation: Clay is widely used as a positive model for casting in more rigid or permanent materials like metal, plaster, or concrete.53
- Ease of Mold Removal: When creating complex shapes, it is often easier to remove a plaster mold from a soft clay model than from one made of a rigid material.5
By using clay, artists can experiment with expansive spatial designs that are not limited by the dimensions of a solid block of stone or wood.4