Casting a Head
Casting is the process of changing a sculpture made from a soft, temporary substance, like unfired clay or wax, to a hard material such as cement, bronze or steel. The artist makes a mold from the original artwork and uses the mold to cast a permanent sculpture.
How Do You Make a Cast?
Make a Mold Joint
Divide the clay head into two parts by dragging the mold joint to the top of the sculpture.
Mold Joint
How Do You Make a Cast?
Add Plaster
Drag the plaster over the face to cover both sides of the head, leaving a little bit of the mold joint sticking out.
Plaster
How Do You Make a Cast?
Separate the Halves
The plaster dries for at least eight hours. Drag and release the chisel and mallet over the mold to separate the two halves.
Chisel & Mallet
How Do You Make a Cast?
Put Halves Back Together
The inside of the mold is the negative image of the modeled head. Drag and release the string to put the two halves of the mold back together and tie them.
String
How Do You Make a Cast?
Pour in the Liquid
Now the mold is upside down with the hole left by the armature at the top. Drag and release the liquid until it fills the mold. It could be cement, plastic, or another hardening substance.
Liquid Cement
How Do You Make a Cast?
Separate Again
The liquid inside the mold hardens over several days. Drag and release the hammer and chisel to separate the two halves of the plaster mold again, revealing the cast head inside.
Chisel & Mallet
How Do You Make a Cast?
Finally
Now you have a sculpture of a head in a material that will last for many years.
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