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Devious Comments
Comments
Looks cool though
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=kamikazekayti ~sheeep
The finished piece is packed in casting sand - inside and out, using equal pressure - and vented generously. The sand is drier than what would be used for pattern casting. In the case of my piece, the bottom under the feet was cut out to allow the inside to be packed with sand. The cape is a separate piece altogether. When the aluminum is poured over the styrofoam, it burns away and makes a horrific stink. Because of the relative softness of the foam and the drier sand, distortion of the piece can happen and is something one has to accept, although tighter packing seems to lessen the problem.
I don't think I would ever use this method again - mostly because of health and environmental concerns. Styrofoam off-gases some nasty chemicals, even when it's not being burned. On the other hand, you can work it with a dremel or carving tools and can salvage chunks of that bloody packaging foam if you don't want to pay for new stuff. This method was popular in the 60's into the 80's, but has been banned in most schools that teach aluminum casting. Personally, I would love to try lost wax and see if I can get a similar effect as with this piece.
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