Making your clay master

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How do I make a simple plaster mold?

Making your clay master

You can make your own shape out of clay by pressing balls of clay together in roughly the shape you want. For example, you could rough out a rectangular casserole dish. A wooden paddle is useful for getting your clay close to the right shape. Then cut a template out of cardboard which is the profile of the cross section you desire. For a rectangular shape, you will need two pieces of cardboard, one for each direction. Pull this cardboard across the soft clay pieces to finalize the shape. One this shape is made, burnish the edges so they are very smooth, then build a moat around it (as above) and fill with plaster.

   

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