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While carving, periodically take some clay and test your design by pushing the clay into the surface. Your clay will pick up the loose plaster particles and also allow you to see what the pattern you have carved looks like. Use the same clay a few times, then discard. You do not want to fire this clay, or mix it into your other clay, as plaster mixed in clay is likely to cause an explosion in the kiln.
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Patricia Walters-Fischer |