Tomorrow I am all set for burnout of my pieces. After several weeks of repetitive slurry dipping then rolling in the sand my pieces have gained enough weight and substance to move on to their next positions. First, they will be placed in an enclosed firepit then be toasted at extreme temperatures so as to lose their internal mass and become hollow forms. I have been told that it takes about 30-45 minutes for the wax and other debris to burn out.
Next week the hollow molds will be set to hang in midair while molten bronze is poured into their empty shells. Once it cools the exterior sand and solidified slurry will be gently chipped away with hammers and chisels so as to reveal the near final subjects of my affection.
The raw metal will be ugly and deformed in appearance i expect. It is only after the pieces have all their superfluos bits sawed off, are sandblasted and filed down that we will be able to see whether they are a success.
Monday, November 19, 2007
Ready to proceed to the "lost wax" step in lost wax bronzecasting.
Posted by Arrika at 9:26 PM
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