[Jewelry making - Article 00337] - Re: [Orchid] Drawing down tubing

[John Donivan]

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    Georgie, you get my vote for the most intrepid Orchidian out there.
    But your difficulties could be many things. My drawplates do go
    in.5mm increments - there's a .25 here and there. You need some big
    stout pliers, if not official draw tongs. And you must use
    lubrication - we use Vaseline. In tubing, it's easy to draw it, until
    the edges meet, and then it gets really, really hard to draw - it's
    like a 2mm wire, which is a lot to draw. I try to make it "perfect" -
    so the edges meet at the size I want, then I give it one last pull,
    for roundness. Trying to reduce the size IS difficult. Also, your
    troubles could be related to the taper of the holes on the backside.
    They need to be very smooth and even. I do congratulate you for
    making a drawplate out of wood - realize that the forces involved
    are extreme - it may have a fairly short life... 

        I must apologize - I replied to this before <above>- most of it
        was (hopefully) useful. But I just pulled some wire, and my
        recollection was wrong. It's a carbide drawplate from 2.8mm to
        tiny, and the holes aren't.5 mm, they are.1mm steps - quite a
        difference, and a couple are.05mm. 

http://www.donivanandmaggiora.com
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