[Jewelry making - Article 00203] - Re: [Orchid] Anticlastic forming in the studio

[Rock Water]

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Dear Karen

    Anti-clastic raising is one of the most wonderful disciplines in
    Jewellery making that I have found. I went on a course at the John
    Cass School of Jewellery in London a couple of years ago and have
    been using these skills on and off ever since. 

    You do not need any heavy machinery but you do need to source some
    specialist tools;- 

    i) A steel anti-clastic or Sinusoidal stake. I had a black-smith
    make one for me (I have some photos if you would like me to send them
    directly to you) 

    ii) A nylon or wooden hammer - I don't use one at the moment, but
    you if you use metal stake & metal hammer you will, in theory, move
    too much metal 

    and then the reverse 

    i) A nylon sinusoidal stake 

    ii) A small metal hammer 

    I don't know of any books on this matter - I have some notes from my
    course that I can look out if you need more information. Otherwise
    the discipline is much like ordinary forging. You use the metal stake
    to cause the metal to fold in on itself (like making a tube) and then
    use the nylon stake to bend the metal round into a bracelet shape.
    Iterate from one to the other until you have bent the metal into a U
    shape and achieved the full circle or spiral shape that you are
    after, obviuosly with repeated annealing as necessary. You then tap
    the metal over very gently to seal up the edges and (if you want)
    solder together. 

    You can use very thin metal, maybe 0.7mm for silever and 0.5mm for
    gold, particularly if you are not soldering as the oppsing curves of
    the anticlastic shape are incredibly strong. 

Good luck
Chris
http:// www.rockwaterstudio.com
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