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Thread: Spot Welder Mods.

  1. #1
    Gunco Member PullThru 1948's Avatar
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    Default Spot Welder Mods.

    Hope I'm in the right forum for this question.
    Been using a HF spotwelder with great success for a while and as usual , something crops up where the darn thing can't fit in to spot weld due to size.

    Wondering of the possibility of adding a "skinny" pair of extension copper tongs to the existing Tongs, to enable reach inside narrow cavities, such as mag. Bodies etc.

    Don't know if this would be safe/unsafe, effective or a useless exercise ?.

    It would really open up a lot of possibilities though, should it be doable.

    Any thoughts appreciated.

    Thanks all.

  2. #2
    Chief Administrator 7.62x39's Avatar
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  3. #3
    Gunco Member PullThru 1948's Avatar
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    Thanks 7.62x39, I remember your mods. from some years back and that"s how I configured mine. Great for receivers.

    What I was getting at,was a way to get inside a Mag. body.

    Thinking of size reduction of, say3 or 4 inches(haven't measured anything yet), of the lower Tong, and having it either flat or round , with a parallel sided tip, to fit in the mag., body for
    spot welding.

    Any reason this wouldn't work?.

  4. #4
    Gunco Veteran Viper Dude's Avatar
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    Hello PT,
    I suggest a bit of insulation around the tong that goes inside the mag shell. That will prevent arcing out in the wrong places. A special low profile copper tip will likely be needed for inside work. I have used small copper rivits for that replaceable tip.

    VD in AZ

  5. #5
    Gunco Member PullThru 1948's Avatar
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    Hey VD, thanks, sounds like a plan.

    What material for insulation would be appropriate ?

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    Gunco Veteran Viper Dude's Avatar
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    I have used non-OSHIT approved paper wrapped several times around the tong and secured with glue or tape. Yes, it's combustable... somwhat. Don't get it that darn hot !!!! Fiberglass cloth should be a better wrap, tied down with fiberglass thread.

    VD in AZ

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    Gunco Member Jay Byrd's Avatar
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    Insultherm Spark Plug Boot Insulators are good for 1200 degrees. It is a sleeve 7.5" long made from heat resistant fiberglass yarn. 4 for about $15. Buy from car racing store.

  8. #8
    Gunco Member PullThru 1948's Avatar
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    OK, thanks for all the input folks.

    I've ordered some 5/8 Copper Rod From MacMaster-carr and just need to source the insulation and then see if the plan comes together.

    Cheers all,

    PullThru1948

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