[Jewelry making - Article 00003] - Re: [Orchid] Natural gas

[Thorrko]

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    For years I've been using natural gas from city line with no problem
    ,having many different torches.The reason to switch was memo from
    building management saying that for insurance purposes, tenants could
    use only 5 lb propane bottles.Since I had natural gas line,I did some
    experiments and after few trials I found solution.All you need is to
    change shape of your tips. I'm working mainly with platinum and a bit
    with gold.I'm casting both with natural gas,with great success.all
    you have to do is take a ball burr about 1.5 times bigger that
    opening of your tip and drill larger opening at the end .I would
    experiment with depth until flame is stable, if you go to far,shorten
    tip with fine file  making sure is square and  remove all burr
    after.I made smallest tip inserting IV needle in one of the tips and
    pressing on short piece of larger needle at the end to create the
    same effect. Works like a charm. You can see what can be done with
    natural gas visiting my website www.thorrko.com. If you need a
    drawing, I'll fax it to you. 

cheers
rafal


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