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Old 06-18-2009, 02:01 PM
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millermatic 180

I keep looking and then I found the millermatic 180, I keep thinking about the 140 too. So is the millermatic 180 a better deal? I will be welding on older cars and trucks. Maybe build a gokart or something. Or repair junk but I will mostly use it for body work. I am sorry for all the questions, but I have bought the cheaper MIG welders and got dissapointed with them. Luckily I got my money back for them, but I just don't want to go through the dissapointment again. Oh!! Before I forget, I have a cambell hausefield flux-core welder and it welds like sh**. So is the millermatic 180 a smoother flux cored welder? And you can use gas with the flux-cored part on the 180 can't you? Thanks.

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Old 06-18-2009, 05:55 PM
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Quote:
Originally Posted by chase1994
I keep looking and then I found the millermatic 180, I keep thinking about the 140 too. So is the millermatic 180 a better deal? I will be welding on older cars and trucks. Maybe build a gokart or something. Or repair junk but I will mostly use it for body work. I am sorry for all the questions, but I have bought the cheaper MIG welders and got dissapointed with them. Luckily I got my money back for them, but I just don't want to go through the dissapointment again. Oh!! Before I forget, I have a cambell hausefield flux-core welder and it welds like sh**. So is the millermatic 180 a smoother flux cored welder? And you can use gas with the flux-cored part on the 180 can't you? Thanks.
The Miller is a good welder. You do not need flux cored wire if you are using gas.
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Old 06-18-2009, 07:27 PM
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Definatly go with the 180 if your wired for 220. Go bigger rather than smaller, dont worry you'll be looking for more projects as you get better. As for gas & flux core theres no reason to run flux core with gas. Flux core burns hotter and will cause more burn through on thin steel. Gas gives you much cleaner and smoother welds and is much easier to weld sheet metal with gas and .023 wire. You wont want to use f/c after using solid wire + gas. I have a MM 175 and have never regretted it.
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Old 06-19-2009, 09:11 AM
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k thanks. Yeah we are wired up for 220. So once you run solid wire w/gas you can't run flux-cored again?? Which it don't matter because I have one and I never hardly use it anyway.
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Old 06-19-2009, 09:41 AM
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If you run gas on flux core you won't see any difference at all one way or the other it will just wa$te gas! Some people have confused the cored MIG wires (duel shield) with running gas on flux core but that is an entirely different wire and it requires gas same as solid wire. These wires are usually used in larger sizes than we normally see on the home shop type MIGs but now both Hobart and ESAB have the Hobart Excellarc 71 and ESAB Duel Shied II 71 Ultra available in .035 that works great on these small machines. These wires run good on either C25 or straight CO2 and although not for body work they are REALLY good for fabrication like that go-kart that was mentioned. The Excellarc or the Ultra will run smooth and lay a really slick bead under a slag that will simply brush off, if it does not just fall off by itself, and is a much better wire for building things than the solid types. I especially like the Hobart Excellarc since this stuff will weld vertical and overhead just as easily as flat, a lot easier to weld overhead than solid wire, and will bridge a gap like nothing else!


BTW, to run flux core on your MIG, which you may need to do sometimes, you just switch the polarity to straight (electrode negative, ground positive) and leave off the gas, you MUST switch the polarity! You may need to use the flux core when welding outside for example or in any other drafty situation so it is a good idea to keep some on hand. There is a common mis-conception that in drafty conditions you need to turn up the gas flow, this recommendation is even used in a lot of welding manuals, but this almost always does not work and will lead to poor welds. The thinking is that the draft "blows away" the shielding gas but that is not what happens, what actually happens is that the draft will contaminate the shielding gas and it does not have to "blow it away" to cause damage. If you have problems with porosity due to drafty conditions FIX THE DRAFT and leave the gas alone, you will get a MUCH better weld for your efforts.
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Old 06-19-2009, 10:47 AM
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I get what you are saying. I am just buying it for the higher amperage and voltage. I already have a flux-cored welder and hardly use it, I was just going to sell it. I was just wandering if you could still use it in the MM 180. How do you reverse the polarity BTW? thanks I am learning.
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Old 06-19-2009, 11:49 AM
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One of the neat things about a MIG is that you can use it for MIG welding or Flux core but with a flux core machine you are limited to just doing that. As far as switching the polarity that is different from one machine to another but is usually easily done, it is simply a matter of switching which lead is positive and which one is negative and the manual (instructions are sometimes right on the machine itself) will tell you how.



Also the cored "duel shield" wires I mentioned use the same polarity (reverse) as solid wire so if you try one of them you won't need to switch anything even the gas you will be using will work. That Hobart wire (Excellarc 71) is simply amazing and if you are welding anything from 1/16" stock on up it does a fantastic job. It will use slightly less current than an equivalent size solid wire but will weld faster and make a much nicer weld with practically no spatter. If you need to weld something as thick as 1/2", and you could weld a lot thicker than that if you need to, then these "duel shield" wires are a lot better than solid.
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Old 06-19-2009, 07:34 PM
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the millermatic 180 is what I will go with. I will mostly be using it for body work. I do it all the time for myself. We buy them and restore them all the time.
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