Friday, June 30, 2006

Making a two part mold part 3

Once the clay has been built up to the parting line and the clay is squared off all around, it is time to smooth it out. In the top photo to the right you can see me using a sponge to smooth out the clay around the pieces. In the middle photo you can see the result of this process.

Next is the final smoothing and filling to get the clay perfect up to the parting line and to make it come up to the edge of the pieces in a smooth line with no little gaps and no extra clay sticking to the piece. Do do this take a flat brush that has soft but reasonably stiff bristles and wet it. Squeeze off excess water between your fingers so that you don't leave a puddle of water on the clay. Then use the brush to clean the edge of the model and refine the line where the clay meets the model. You can see me doing this in the bottom photo. During this process you will find small areas that need a tiny bit more clay or where a bit should be removed. After adding tiny amounts you can smooth it out with the brush. Continue in this manner until the surface of the clay is smooth and the line where the clay meets the model is even and crisp.

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