Making a Mold Using the Cavity Pour Technique - DVD
Creating a negative space or "cavity" between an original model and a support shell that is filled with rubber is an economical method for making a rubber mold. This technique minimizes the amount of mold rubber needed and results in lower material costs for the mold making process. Step-by-step instruction. Bonus video included: "Duplicating a 3-Dimensional Model by Making a Single-Seam, 2-piece "cored" mold.
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