[Jewelry making - Article 01278] - Re: [Orchid] Advice for soldering 20ga silver

[Noel]

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>     As you have volunteered, I would like to try your titanium supports
>     for soldering bezels to large sterling silver backings.........
>     with the heat source to the underside of the silver backing plate.
>     Also, what is your favorite heat source? Acetylene only? With
>     oxygen? What number flame tip? 

    OK, I am saving the addresses of the people who have asked, and will
    send out another round of titanium strips. Don't worry, the cost is
    not worth reimbursing. I'll send strips to the first 15-20 who ask,
    if it goes that high. 

    I'm not really fussy about the torch. I have an acet/air Smith that
    I used happily for years, and also use both places I teach. I also
    have a Meco Midget propane/oxy which I bought because the acet/air
    wasn't good for fusing. Now, I pretty much use the latter, as it is
    more versatile, and it is really nice, for the occasional large
    project, to have two torches available. 

    Tip size depends entirely on the size of the project, but this does
    bring up one relevant point-- when you solder from beneath,
    especially when bouncing the heat off the brick, block or pad and
    back up onto the piece as I do with the help of the ti V's, you must
    use a much larger flame than you would for more direct heating. 

    This technique is not really different from using a "nest" of
    binding wire or a pile of nails, as others have suggested, except
    that it is perhaps more elegant. The small titanium strips last
    indefinately, don't act as a heat sink, are not messy, and offer
    good, level, even support. You get most of the same benefits making
    your V's out of copper, except that with ti, it is literally
    impossible to solder them onto your piece by accident. 

    I'll give it a couple more days, then gather up the requests and cut
    some strips of ti. 

--Noel

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