mold-making
Traditional Mold-Making.
Stoneware clay, Monster clay, Sculpey and Ultracal.
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In order to achieve highly detailed silicone casts for puppets, I resort to using the traditional method of mold making by sculpting a figure in the final scale and creating a 2-part mold with cement (Ultracal).​​​
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This method allows me to preserve the "hand built feel" of the puppet by choosing to keep certain decisions while sculpting.
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Before pouring the UltraCal I make sure to prepare the mold with a leak proof enclosure with registration points, release points, and vents.
Then I add a generous layer of Vaseline and mold-release making sure to be homogeneous.
Finally, I start the mixing of the UltraCal and slowly pouring it to one of the inside walls of the enclosure to avoid air pockets.
Digital Mold-Making.
Monster clay, 3D scanner, 3D modeling software and 3D PLA Printer.
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In order to achieve a more efficient silicone casts for puppets, I resort to using the rapid prototyping and a digital method of mold making by sculpting a figure, 3d scanning it, creating a 2-part mold with a 3d modeling software and 3D Printing. cement (Ultracal).​​​
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This method allows me to create identical assets and modify them in a range of scales without having to re-sculpt
Silicone casting.
Dragon Skin Smooth-On silicone, Silc Pig, Psyco-Paint and Chalk Pastels.
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After the molds are cured and completed, I begin the process of silicone casting by cleaning the mold with a sterilized brush. Then I add a release agent and brush the mold for an even coat.
Once the release agent sets, I go ahead and mix a 1:1 ratio of silicone rubber and medium until well incorporated. Throughout this process I make sure to slowly add pigments until I reach my selected shade. Then I brush a thin layer of the silicone through the mold to avoid air bubbles and color variation. Finally, I add a second batch of silicone to cast the asset.​​​
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This method allows me to monitor the correct curing of the silicone and for the opportunity after demolding to continue adding details to the cast.