[Jewelry making - Article 00024] - Re: [Orchid] [Source] Silver tubing

[Anthony Lloyd-Rees]

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Hello Vince,

    I have read the many posts on this subject and haven't seen
    anything about seamless cast tubing. 

    If you do not require the strength or thinness of drawn tube and
    don't need pieces more than an inch or so, why not just cast it? 
    I have cast 4" in a vacuum setup. Plastic tubing and drinking
    straws waxed to size (dip it in hot wax to build the thickness)
    also hobby stores and building suppliers have tubing of various
    sizes and shapes that will stink up your shop as they burn out.
    For tiny tubing dip iron wire in wax and remove it after the
    cast. 

    For round tubing a drill bit and wooden grit reamer cleans up
    the inside. Chuck it in your FS and sand the outside. Square,
    triangular and hex will take a little longer to finish. Stars
    are a real pain. 

    I have never attempted to draw cast tubing as I have never
    needed tubing by the foot. I'm sure with a lot of annealing and
    gentle increments it could be accomplished though. 

    Anyone have that kind of time to experiment? 

Hope this helps.

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web site:	http://www.opalsinthebag.com    
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Vancouver, B.C. CANADA. 

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