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…another               1%                                           1%  I mentioned at the start of the article that an-
        method is                                                         other method is necessary if the base of the stone has

        necessary if                                                      a complex shape, for example, indents, crevices or
                                                                          holes. With such a base, the plaster would flow into
        the base of the                                                   these areas and simply grip the stone in a way that you
        stone has a                                                       could not remove it from the mold. In simple cases,
                                                                          you could fill the holes or indents in the bottom of the
        complex shape,                                                    stone with plasticine so that the plaster will not flow

        for example,                                                      into those parts, but another good way to get your
                                                                          indented impression is to use florist foam.
        indents,                                                            1^  Press the base of the stone firmly into the foam
        crevices or                                                       block down as far as you would like the recess to be
                                                                          and then very carefully remove it to reveal the complex
        holes.                                                            shape. Be careful not to break away the edges of the
                                                                          foam when removing the stone. You want to preserve
                                                                          the sharp edges for your outline.
                                                                            Using foam is a little more difficult because of the
                                                                          softness of the material when taking markings and
         1^                                                               especially when inserting the cotton tip markers into
                                                                          the foam mold, however, it is an accurate way to get
                                                                          your recess if you are careful.

                                                                            Whichever method you use to create a mold of
                                                                          the stone's bottom, if you have been accurate with
                                                                          your outline and depth markings, you should finish
                                                                          up with a perfect, or near perfect recess for you
                                                                          stone. If you make any small errors with the internal
                                                                          carving you can always use a little wood filler to make
                                                                          corrections.

                                                                          *  Perspex is a trade name for Acrylic or acrylic glass , a
                                                                          transparent thermoplastic that goes by other trade names;
                                                                          Plexiglas, Acrylite, Lucite, and several others.









































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