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Thread: Keys to Achieving Good Spot Welds

  1. #11
    Chief Administrator 7.62x39's Avatar
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    I've heard of others who achieved better results by using an extension cord, but mine has always worked just fine plugged directly into the outlet.
    .

  2. #12
    Indian Admin Winn R's Avatar
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    Those are great welds and better than I've ever done.
    There is no nonsense so errant that it cannot be made the creed of the vast majority by adequate governmental action. -- Bertrand Russell


    "Never attribute to malice that which can be adequately explained by stupidity." Robert J. Hanlon

  3. #13
    AK addicted gunaholic dutchkma's Avatar
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    The majority of my spot welds "dished" in. I attribute it to more tong pressure, I really clamp down hard, and go at least 2 seconds, if not 3. Only burn through I've had was when I mssed the rail on the inside. I plug in directly, Harbor Freight 110v unit, AK bulider lower tong.

  4. #14
    No Hope For Me Coils's Avatar
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    Quote Originally Posted by 7.62x39
    I've heard of others who achieved better results by using an extension cord, but mine has always worked just fine plugged directly into the outlet.
    Because your "the man"

  5. #15
    Gunco Rookie maxposner's Avatar
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    this whole thing has me spooked, I have the 230vac welder, and am terrified of burn through. Where does this timer come from and what is the significance of the SCR. Does anyone have a schematic, as to how these devices wire into my welder. Is it a cord arrangement or do I have to build a box.

  6. #16
    Gunco Maniac sjohnson's Avatar
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    Not a direct answer, but if spot welding has you spooked, go down to your hardware store and buy some .050 sheet steel, cut it up into pieces and practice on scrap.

    Play with the scrap until you've figured out the right tip shape, the necessary tension, the need for clean tips each time, and the look & feel of a good weld.

    Burn up $20 of scrap sheet and you'll be a LOT less worried when it's time to weld up that receiver.

  7. #17
    Gunco Rookie maxposner's Avatar
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    Always a good suggestion, i was going to use the stub scraps. I have used the welder on thicker metal for other projects. But I know the first time I pull that trigger on a receiver, its going to be nerve wracking. This timer intrigues me, for repeatability, I have over a dozen kits.

  8. #18
    GuncoHolic kernelkrink's Avatar
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    Here's an off the shelf solution, you can wire in a foot switch and a contactor scrounged from a big electric motor to control your welder. It's the timer used on the 5bears homebrew spotwelder.

    http://www1.mscdirect.com/CGI/NNSRIT?PMAKA=54023122

  9. #19
    Gunco Member texgal's Avatar
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    If you really want to learn something,watch this guy!

    You may like it!

    Session before Socialism .

    Join The Texas National Movement today!


    https://www.texasnationalist.com/

  10. #20
    Where's my lathe? ashhoe's Avatar
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    Holy necrophilia!
    That's a greater than 4 year resurrection (or, assualt) of a thread. It might qualify for the record!
    Last edited by ashhoe; 03-24-2012 at 12:02 AM.
    member # 575

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