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The preparation begins to mold the Dragon’s legs. This mold will be a different kind of box mold, where the vertical foam core walls are not a simple rectangular box – building a rectangular box around a piece this shape would result in a large waste of expensive silicone, so to cut down on the amount required, the mold is built in a custom shape around the dam that separates the leg into halves. The piece of equipment shown in this photo is the vacuum pump, which attaches to the vacuum chamber that degasses the silicone.