For thin metal welding check out the first few comments on this thread.
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I’m not a welder at all , and have had varied results over the years, but the one thing I do know from watching someone that welds for a living is , that before he starts welding anything he always without fail grinds the area to be welded , , using a wire brush wheel just wont cut it as far as cleaning the area goes , you have to have pure clean surface .
Dave
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If you’re going fishing and you’re low on bait just empty your black condensate on your lawn and these fellas start poppig up. No need digging for worms 
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If you put just about any resistance (like a light bulb) in series with a welder, there will not be enough current flow to the welder to allow it to work. Any extension cord on a welder better be heavy (10 gauge or larger diameter wire). Best to work close to the outlet, or run a permanent extended circuit with a proper rated wire and outlet for the required amps. If you want to cut the welder’s output on purpose, a smaller-gauge extension cord may be all you need to lower the welding current below the machine’s lowest setting. (Keep in mind I know something about electricity, but not much about welding!) 
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I always heard using to little extension cord would heart the welder or power tools that was being used.
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Thank you Mike for your input. I know very little about electricity and I don’t weld very fast or very slow— I am a half fast welder. I was going by an experience I had where my welder was not performing up to what it should, and I concluded that the100 ft electric cord I use was causing a inline resistance, that was cutting it’s performance. I now move my work to the wall so I can plug into an outlet direct. I thought that the electric cord may just help with the burn throughs on thin metal. TomC
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Amazin Blaze old timer welding services- https://www.youtube.com/watch?v=rLnN-hqgfxY&feature=em-share_video_user
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Very obvious he is an Alabamian before he even mentions it .
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This is how you can put area light where and how much it is needed. The green car needed help with a serpentine belt replacement. And the Dakota needs the upper third taken off. Magnets $3 each. Lowes socket $3. Plus a 100 watt bulb. LED’s and CFL’s keep the power down and the heat away from your head.
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That is a well lighted work area
I like it
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Magnets are a great idea. There is not much to grab under a hood.
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you would hate my shop 4- 60 watt bulbs a flashlight and a headlamp all good.
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I have been bullied long enough. Two years ago I had on this same 2008 Ford Focus, the low tire pressure light come on with the light flashing for a minute, and then on solid the rest of the time. It will irritate the driver into spending money through either a dealer or a tire shop. Last time the false signal caused a new $90 something sensor replacement plus a $30 reprogramming charge. This time I bought junkyard rims and forgot about those pricey sensors inside each rim. Then came the break down of my will until I pay the piper. Not this time. First I topped off the gas tank, let the car set overnight. Take a picture of the dash. Disconnect one battery post. Then I removed the cluster and used a half dozen small screwdrivers and my fingers to extract the circuit board out of the housing. High temp silicone smeared over the LED does it. Paint won’t work. Plug the cluster back in laying it loose. Press the needles into a close position. Re hook the battery and test fire the engine. Pull the needles with a small channel locks and reposition. When satisfied, put everything back in with the battery unhooked again. Then re hook and verify on the road with a GPS. Mine is within 2 MPH. I won.
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Wow!! You have a lot of patients to mess around with that computer. My speed-o doesn’t work so I went on YOuTube and found this VS (?) computer and how you can change the speed-o reading based on a change in differential gear ratio. I thought that doesn’t sound hard to change the wires. Then I got the VS out of the car and unwrapped it and saw how little everything was in real life compared to the blown up pictures. I still don’t have a working speed-o. TomC
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Hey Tom. I my case every thing worked plus I had a yelling light. Sick of the helpless protocol, that’s all.
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Amazing tool.
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That wrench is way too funny. one of the places I worked there was this very annoying know it all. One day we where so sick of him we sent him shopping for a metric adjustable. Convinced him before he left that of course a standard one just wouldn’t fit. Two days later he shows back up at work and explained that he couldn’t find one in any store within something like 200 miles but there was one comming special order from Europe overnight delivery. The manufacturing supervisor actually thanked him with a straight face. His wife was the person who hired and fired.
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I used a hardened circular saw blade for my gasifier top plate but when I tried drilling holes in it for flange bolts I could not get through it without sharpening my titanium bits three times per hole. I tried heating the area of the holes with Oxy propane and cooling slowly to try and un temper it with no success. Then I found out that Titanium coated bits are just that - COATED. As soon as you sharpen them - the coating is gone and they become high speed steel bits. Then I found out about cobalt bits and that the cobalt is in the steel before the bits are made and you can sharpen them many times and they retain their hardness. Now I can drill 2 to 3 holes between sharpening.
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Hey Don, at work I always use a chromium / nickel TIG rod for joining a hard metal to a soft one or it will eventually crack and separate. Seen it, been there.
But if you’re committed to this path, see me.
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I found this video where they use massive currents to melt/burn heavy steel tools like wenches. 5000 Amp Fuse + Tools Melt With High Current:
You could damned near stick/TIG weld with rebar using that thing!
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