[Jewelry making - Article 00437] - Re: [Orchid] Mold cutting ponderings

[Morten Karlsen]

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    I have a suggestion that might work. It is not tested, so other
    members of this forum need to provide more detail or approve the
    whole consept. Also... I'm assuming that water soluble wax can be
    injected into a mold just like ordinary injection waxes. If that is
    not possible this idea won't work *grin* 

    I'm assuming you have already made your pieces? 

    If so... Fill up the "hollow" area of your piece with wax that won't
    melt when making a mold. Where the wax-core extends all the way out
    to the surface of the piece, insert some "guidance rods" that extends
    a few millimeters. When done make a mold of the whole thing. 

    Finalize mold and make a wax model of this shape. When done carve it
    down so that you end up with the "hollow" space inside your piece.
    Make a new mold of this shape. This shape is the "hollow core". The
    material you have just removed represents the metal in you piece. 

    "Big mold shape minus hollow core shape equals final piece." Right? 

    The approach is to inject water soluble wax into the smaller/"hollow
    core" mold. Once the mold is filled take out the wax shape and insert
    into the bigger mold. The "guidance rods" makes sure it is positioned
    correctly. Fill up with ordinary injection wax. The final wax piece
    should now consist of a water soluble core with a layer of ordinary
    injection wax on the outside. 

    Dump in water and you end up with the final master pattern. 

    Another approach might be to make the "hollow core" shape in a
    material of your choosing. Make a mold. Then add on to the "hollow
    core" shape some material that will represent the outer or bigger
    shape. The material added represents the final piece.

    Now.. this is theory only - and feedback or more elegant approaches
    will be appreciated :) 

Best regards,
Morten Karlsen
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