Making Jewellery - August 2016

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62 makingjewellery.com

TIPS & TECHNIQUES



  1. Press the two halves back together so the
    pins placed in Step 4 locate and the two crosses
    marked in Step 6 line up. This means you know
    that both your carved shapes on either side of
    the cuttlefi sh will be lined up perfectly inside
    the shell. Wrap some binding wire around the
    outside, keeping everything tightly together.
    Place the bound cuttlefi sh into your casting
    area, making sure it is securely propped up. It is
    now ready for the liquid silver.

  2. If you have a brand new scorifi er (heat
    tolerant dish), you need to prep it before
    smelting. This is simply done by painting a
    layer of borax into the bowl, heating slowly to a
    high temperature and leaving to cool naturally.
    This forms a glassy layer on the surface of the
    bowl, meaning your silver won’t stick. Add
    casting grain to the bowl (or use off cuts of silver



  • it’s a great way to use up scraps). You need at
    least double the volume of silver to the shape
    you are going to cast. Place the bowl into the
    scorifi er tongs to hold it securely and then heat
    with your torch until the silver turns to liquid.
    Keep the fl ame constantly on the surface of the
    molten silver as you pour into the cuttlefi sh.



  1. Wait until the cuttlefi sh has cooled down.
    Cut the binding wire away and open up the
    two halves to reveal the blackened silver shape.


PHOTOGRAPHS: LAUREL GUILFOYLE, TANSY WHEELER

HOW TO MAKE



  1. A dead cuttlefi sh has a hard shell on one side
    and is very soft on the other side. The soft side
    is the side that you always use to carve shapes
    into. Depending upon the size of your piece you
    can use two whole cuttlefi sh soft side to soft
    side. This is ideal for casting long shapes, for
    example a bangle.

  2. Alternatively, for smaller shapes you can
    use one cuttlefi sh and cut it in half, across its
    width. It’s easiest to cut it soft-side up using
    a hacksaw or similar tool with a thick blade
    rather than a piercing saw.

  3. Place one half soft-side down onto a piece
    of coarse sandpaper and rub back and forth to
    obtain a perfectly smooth surface. Repeat this
    step for the other half of the cuttlefi sh.

  4. It is good practice to push small pieces of
    wire into one side of the cuttlefi sh as this
    provides a secure fi t, especially when you
    are carving both sides out to make a three-
    dimensional shape.

  5. Manipulate a piece of wire into the shape
    you want your bead to be and place onto the
    smooth surface of one half of the cuttlefi sh,
    approx. 2cm away from the top. Press it into the
    surface lightly so it doesn’t move.
    6. Now press the other half of the cuttlefi sh
    over the top so the wire pins push into the
    other side and the wire shape squashes between
    the two pieces. It is also a good idea to mark a
    small ‘x’ shape on top of the cuttlefi sh at this
    point as this will visually show you that you
    have the two halves perfectly lined up.
    7. Open up the two halves and carefully remove
    the wire. You will see that the wire shape has
    made a perfect impression onto both sides of
    the cuttlefi sh.
    8. You can now carve into both shapes using
    either specialist crafting tools or simply use a
    smooth pointed object such as a crochet hook
    or knitting needle. When you have the desired
    shape, use a soft watercolour brush to brush
    away excess cuttlefi sh dust. This will really
    bring out the texture.
    9. You will need to carve out a spout on both
    halves. Make sure the hole isn’t too small
    otherwise you may get an air bubble trapped
    and this will make pouring the liquid silver
    very tricky. Finally, and very importantly, you
    need to make small thin lines radiating away
    from the shape to the edges of the cuttlefi sh.
    This allows for trapped gas to escape, avoiding
    bubbles in your cast.


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