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MAC702
Senior Member
Last Activity: Today, 06:12 PM
Joined: 09-08-2002
Location: Clark County, NV
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  • You ask for suggestions without telling us what process and wire size you're currently using. What is the actual thickness of the sheet metal in question?

    For best results, you will want the GMAW process and .024" solid wire with a C25 (or similar) shielding gas. Everything different...
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  • That appears to be the type of pulley used for the blower wheel on evaporative coolers. I think I paid less than $20 shipped when I last bought one from Amazon.

    As for milling off the one edge, does it HAVE to be that pretty and precise? The proper aluminum cutting disk in a grinder,...
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  • MAC702
    replied to no arc not even a spark
    What is your level of experience? When did it last work, and what is different about how and where you are using it now?

    Check work lead connections and that you are clamped to an unpainted surface with direct path to the unpainted area you are welding.

    What process are you...
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  • First, I will point out that it is possible that the OP himself is the one who owns and is advertising the machine and using this thread as a means to advertise it with a link. The OP should not be offended and recognize that he is unvetted and that this is a known practice. It also may entirely be...
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    Last edited by MAC702; Today, 08:49 AM.

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  • MAC702
    replied to Old welders
    The older and cheaper the machine, the more likely you can get generic parts that do the same thing. I'll wait for pics and more punctuation, so I easily understand the issue, before looking.
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    Last edited by MAC702; 06-21-2017, 06:36 PM.

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  • MAC702
    replied to Welding project help
    In 20 years of using wirefeeders with arbitrary numbers on the dial, I've never once calculated an actual feed rate. Set it, fire an aiming shot, adjust, and fire for effect.
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  • Doesn't matter structurally if the seam or center piece transmits the tension forces from one corner to the other. Even a cable or chain works, so it's just an aesthetics issue, for the most part.
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  • MAC702
    replied to Fixed my 2 bar problem
    Don't know what gives you the bars, but I can prove it isn't length of membership or handsomeness!
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  • MAC702
    replied to Tell me about spool guns.
    Bondo....
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  • MAC702
    replied to Tell me about spool guns.
    Spoolguns are cumbersome in size, weight, and visibility; compared to a standard gun, and steel wire has no need for it, as it pushes relatively easily through even long cables. Spoolguns simply can't even get into some places where we want to put welds.

    That said, I've run a lot of FC...
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  • My first instinct is just more practice, and try more amps. 6013 is among the easier rods to use and 6010 and 7018 among the more difficult. 7018 will also be more difficult to light a second time unless you clean the tip of slag after each strike.
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  • MAC702
    replied to Is it the man or the machine?
    Good point, Ed! At least the good weldor with the really bad machine will say: "I wouldn't stand on that if I were you..."
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  • MAC702
    replied to Welding aluminum dirtbike case
    HOW you meter it isn't a big deal. Professional shops will usually use a ball flowmeter because they want an accurate number and learn the settings that give them less waste. Many of us use just the plain flow-regulator that comes with our smaller machines because it works fine, and is accurate enough...
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  • MAC702
    replied to Welding project help
    Your machine is powerful enough for that material where you could push or pull, and might vary the settings a little bit depending on which you do. If appearance being different between the two beads doesn't matter, you can mix it up on the same joint depending on your position.

    What is...
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  • MAC702
    replied to How Many Hours is too Many
    And your first post is to drag up a 6-month old thread from a one-poster solely to mention its lack of follow-through? There is a reason we let it die the first time....
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  • MAC702
    replied to XMT 350 - exploded capacitor
    I am NOT a welder repairman. However, in the HVAC world, our most common repair is to replace a blown (sometimes violently) capacitor with no further repairs necessary. It's been a long time since capacitor ingredients were hazardous to health, assuming you don't mix it into your breakfast burrit...
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  • MAC702
    replied to Question for one of you Pros
    What is the condition of your consumables on the tip? Do you have spares?
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  • MAC702
    replied to Is it the man or the machine?
    I'd rather be dumped into the lava than fry on the skillet above it.
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  • MAC702
    replied to Transporting Tanks w/ No Truck
    Sizes sold seem to differ throughout the country, but I can buy 250's in Southern Nevada with no problem. Or at least I have. Been a while since I needed to.

    Anyway, there is no problem storing or even using a high-pressure cylinder on its side. The only issue is security while transporting....
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  • MAC702
    replied to Minor electric shock when welding.
    When asking about the the possibilities of your equipment, pictures are worth a thousand words. Other causes can be the location of the work clamp and weldor on large weldments.

    Please use the subject line for the actual subject, so that we can search threads easily and remember what they...
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