Finally a new welder! - JeepForum.com

 
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post #1 of 11 Old 06-02-2013, 05:19 PM Thread Starter
TimV
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Finally a new welder!

Finally got the chance to pick up a new machine. I had been using an old Snap-On 140amp unit. It proved to be inconsistent at best. Some days it made beautiful welds, other days I wanted to run it over.

Yesterday I picked up a Hobart 210mvp. Also came with a cart and a decent sized gas bottle. Plus a new 10lb spool.

So far I've just done a few test beads on some scrap, but I can already tell I'm going to like this one a lot more. My weld started to pool much quicker, and looks a bit cleaner. I don't have a 230v outlet in the garage yet, but I will definitely be putting one in soon.

My favorite part is that I was probably going to pull the trigger on a brand new one soon. I got this one for less than the price of new, including the bottle.


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post #2 of 11 Old 06-08-2013, 08:23 AM Thread Starter
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I finally hooked up a 220v outlet in the garage. So I got to play around with that for a while yesterday.

I am having a little trouble with getting my bead to feel consistent. It feels like the wire speed is too fast, but if I turn it down any, it's not fast enough. I am still getting decent welds, and great penetration. I am assuming there is a slight learning curve moving up to 220v?

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post #3 of 11 Old 06-08-2013, 12:32 PM
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Sounds like it was a used machine? Make sure your liner is in good shape and not worn out or kinked or even a bugs nest causing the inconsistent welds if it has been sitting a while. 220v should prove to be much smoother than 110. look at your feed rolls to make sure they are clean and not rusty or have some dirt hi spot causing a hi/lo pressure as it turns. Push the wire up against a piece of wood to check roller tension, it should push your hand a little then spin but not crush or bind on the wire (I have a feeder that will accordion .045 and less if I use all four rolls). Post some pics of the welds if you can. What gas/wire type and size combo are you using?

For most "Jeep" work, 70s6 wire (.23-.030) and a good 75/25 gas will work great, a tri mix (ar/co2/o2) mix will produce a more fluid weld in the right situation using 70s6.

Hope that helps!

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post #4 of 11 Old 06-08-2013, 01:30 PM Thread Starter
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Yes, it is a used machine. I did some more work with it today, and I got better. I actually turned the wire speed up a little and I did better. The welds actually look pretty good. Plenty of penetration. Welding up 1/4" brackets, and it is nice and blue on the back side of the steel. I think part of the problem is I am not used to how much it burns into the material. I'll get a picture up in a bit.

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post #5 of 11 Old 06-08-2013, 01:45 PM Thread Starter
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Here's a couple pictures of what I did today. Running .035 wire, with C25. Actually, the wire might be why it seems different. I had .030 in the other welder. I was also using 75/25 Argon/co2 before as well.



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post #6 of 11 Old 06-08-2013, 01:59 PM
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not too bad....get out of the habit of whipping the puddle and run one consistant hot pass...you have alot of undercut..start doing just a steady consistant pass and watch the fill...let it fill just to where you see the puddle completely fill...

Whipping back n forth and in and out causes undercut and weld stress

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post #7 of 11 Old 06-08-2013, 02:13 PM
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X2, w/110 you probably did not have a choice, now the weld is you oyster, did I just say oyster? LOL Your on! Have fun.
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post #8 of 11 Old 06-08-2013, 02:14 PM Thread Starter
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Quote:
Originally Posted by Ironworker709 View Post
not too bad....get out of the habit of whipping the puddle and run one consistant hot pass...you have alot of undercut..start doing just a steady consistant pass and watch the fill...let it fill just to where you see the puddle completely fill...

Whipping back n forth and in and out causes undercut and weld stress
Didn't know that. Thanks for the tip. I'll definitely give it a try next time. So just kinda run straight down the joint? Or move back and forth very slightly?

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post #9 of 11 Old 06-08-2013, 02:23 PM
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Let it flow first, then oscillate a little if it does not reach what you intended. Keep in mind a double pass may work better if it is too wide. Your oscillation should be faster than your pics show. Practice a lot.
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post #10 of 11 Old 06-09-2013, 02:55 PM Thread Starter
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Trying it more like you guys said. How's this look?

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post #11 of 11 Old 06-09-2013, 03:58 PM Thread Starter
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These definitely look a lot better than I was doing yesterday. At least in my opinion. Here's one more:

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