Using a soldering iron, I connect the gates (the pipes) to my piece. This sprue is the path that molten bronze will take to fill the piece. Notice the cup on the bottom, that is were we pour the bronze. The greenish wax is a "nose guard" to prevent the leg of my sculpture from getting bumped and breaking off. Gates have to be attached so that the bronze can fill from the bottom (or near the bottom) and air can excape out of the top as the bronze goes in. This will be more clear after the next step.
Wednesday, June 3, 2009
Step 2: The Sprue
After the wax is perfectly the way I want it, I build a sprue. This consists of wax "pipes".
Using a soldering iron, I connect the gates (the pipes) to my piece. This sprue is the path that molten bronze will take to fill the piece. Notice the cup on the bottom, that is were we pour the bronze. The greenish wax is a "nose guard" to prevent the leg of my sculpture from getting bumped and breaking off. Gates have to be attached so that the bronze can fill from the bottom (or near the bottom) and air can excape out of the top as the bronze goes in. This will be more clear after the next step.
Using a soldering iron, I connect the gates (the pipes) to my piece. This sprue is the path that molten bronze will take to fill the piece. Notice the cup on the bottom, that is were we pour the bronze. The greenish wax is a "nose guard" to prevent the leg of my sculpture from getting bumped and breaking off. Gates have to be attached so that the bronze can fill from the bottom (or near the bottom) and air can excape out of the top as the bronze goes in. This will be more clear after the next step.
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