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Oil, dough and polymer clays are the easiest to work with. Oil clay can not be placed in the oven and is very sensitive to heat. Oil based clays can be cast into brinze using a piece mold. Water based clay requires planning and knowledge and it is fired to become a stoneware or porcelain. Self hardening clay can not be fired. A slab box or cylinder vase is a Level II project. Clay sculptures can be carved out of a solid piece of clay and this process is called subtractive. The additive process involves scoring and using a slip to glue or add one piece to another. When water based clay dries it shrinks. The smaller parts will dry faster and crack where they meet the larger forms. Most sculptors actually use a combination of both techniques. Sculpting any large clay form rquires you to create a hollow form over a maquette or support made from wood and wire. |
The straw sculpture project involves making a cube, pyramid or sphere. You can create a sphere by first creating equilateral triangle then combining the triangles into pentagons or hexagons. These hexagons are then added together to make a shere form. Interestingly this is how computers generate 3 dimensional organic forms. |
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Card board sculptures are made using a process called scoring. The scissors are used in a closed position and card board is placed under the area to be scored. Now you can safely press into the cardboard and it will tear and crush. Score once to make a folded edge and three times to completly cut through the cardboard. The posibilities are limitless and card board is free!
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