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J0K3R-X
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PostPosted: Sat Jun 20 09 8:24 am    Post subject: Reply with quote

nes_matt wrote:
One more quick question:

It seems like from my reading that MIG welding using flux core wire allows higher penetration than when using CO2 or Argon shield gas. Is this correct? The difference seems substantial depending on the source (various specs)


You are correct about the penetration using flux core. If you want good penetration I would go with a stick, plus in my opinion it is way more cost effective and sticks are very cheap compared to wire. Another thing about the stick welding they usually are way more reliable than MIG due to the fact of little or no moving parts like wire feed. You don't have to worry about bird nesting you spool and replacing tips... You can also go places with a stick that you might not be able to get with a MIG due to the limitation of the length of the wire feed gun. You can get 50ft. cables for a stick and not have to drag your whole rig right up to what you are working on.

If you know what you are doing you can also use your wire feed welder as a stick! Just connect welding cable to one of the posts, depending on if you are going reverse polarity and use the ground clamp that is already attached to the MIG. You might have to jump out the wire feed because most of the MIG's don't apply power until the trigger is pressed. Or you can get a MIG/STICK combo like this one which basically has the same feature built in.
http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_200355917_200355917

The Miller Bobcat is nice but $4K is abit high if you don't weld for a living but if you got the cash go for it!
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XtraCheez
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PostPosted: Sat Jun 20 09 8:45 am    Post subject: Reply with quote

My Maxstar is 120V and it is nice for stick welding (3/32 rod) small projects, but I would NEVER consider or recommend one for your trailer build. Very Happy I use mine primary for Stainless TIG.
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Smoked Up
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PostPosted: Sat Jun 20 09 10:23 am    Post subject: Reply with quote

XtraCheez wrote:
a stick weld is stronger that a MIG/TIG weld and much more diverse range of rod.


Says who?

My 210 Miller will weld 3/8" material in one pass. Even if you are a competant welder, you can only penetrate as deep as the material you are welding.
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romex2121
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PostPosted: Sat Jun 20 09 12:19 pm    Post subject: Reply with quote

ive got a miller thunder bolt AC/DC stick welder and it works just fine on 1/4" steel. i think i paid right around $500.00 for it new,, its also very portable
ive built three smokers with it so far and all were 1/4" steel and have'nt had a problem with any weld not holding. you do need to make sure you have the power supply it needs,,, runs off a two pole 50 amp breaker.
i do use a wire feed at work from time to time and they are nice,, but im kinda partial to stick welding Rolling Eyes please dont buy a 120amp wire feed you will be nothing but dissapointed trust me on this i know,,, i bought one years ago and got so frustrated with it i gave it away Mad
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daddywoofdawg
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PostPosted: Sat Jun 20 09 2:33 pm    Post subject: Reply with quote

If you deside to hire someone to do your welding;I went that route and it told 16hrs to build without a trailer; just legs and wheels(think patio style)
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k.a.m.
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PostPosted: Sun Jun 21 09 7:05 am    Post subject: Reply with quote

romex2121 wrote:
ive got a miller thunder bolt AC/DC stick welder and it works just fine on 1/4" steel. i think i paid right around $500.00 for it new,, its also very portable
ive built three smokers with it so far and all were 1/4" steel and have'nt had a problem with any weld not holding. you do need to make sure you have the power supply it needs,,, runs off a two pole 50 amp breaker.
i do use a wire feed at work from time to time and they are nice,, but im kinda partial to stick welding Rolling Eyes please dont buy a 120amp wire feed you will be nothing but dissapointed trust me on this i know,,, i bought one years ago and got so frustrated with it i gave it away Mad


I love my Thunder bolt A/C D/C. And I know for a fact it will weld all day long on 3/8'' plus. On my last build it was 24'' sch 40 I welded the end plates on with a root and cap non stop and never even came close to touching the thermal on the machine.
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romex2121
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PostPosted: Sun Jun 21 09 11:32 pm    Post subject: Reply with quote

k.a.m. wrote:
romex2121 wrote:
ive got a miller thunder bolt AC/DC stick welder and it works just fine on 1/4" steel. i think i paid right around $500.00 for it new,, its also very portable
ive built three smokers with it so far and all were 1/4" steel and have'nt had a problem with any weld not holding. you do need to make sure you have the power supply it needs,,, runs off a two pole 50 amp breaker.
i do use a wire feed at work from time to time and they are nice,, but im kinda partial to stick welding Rolling Eyes please dont buy a 120amp wire feed you will be nothing but dissapointed trust me on this i know,,, i bought one years ago and got so frustrated with it i gave it away Mad


I love my Thunder bolt A/C D/C. And I know for a fact it will weld all day long on 3/8'' plus. On my last build it was 24'' sch 40 I welded the end plates on with a root and cap non stop and never even came close to touching the thermal on the machine.


yep,yep mine to,,, its all the welder i need for around here,, im very happy with mine
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nes_matt
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PostPosted: Sun Jun 21 09 11:55 pm    Post subject: Reply with quote

k.a.m. wrote:

I love my Thunder bolt A/C D/C. And I know for a fact it will weld all day long on 3/8'' plus. On my last build it was 24'' sch 40 I welded the end plates on with a root and cap non stop and never even came close to touching the thermal on the machine.


I hesitated on Ebay last night and missed one with a "buy it now" price of $150... Grrrrr....
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k.a.m.
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PostPosted: Mon Jun 22 09 12:09 am    Post subject: Reply with quote

nes_matt wrote:
k.a.m. wrote:

I love my Thunder bolt A/C D/C. And I know for a fact it will weld all day long on 3/8'' plus. On my last build it was 24'' sch 40 I welded the end plates on with a root and cap non stop and never even came close to touching the thermal on the machine.


I hesitated on Ebay last night and missed one with a "buy it now" price of $150... Grrrrr....


nes_matt, if it was AC. / DC. then that was a heck of a buy. Most of the time AC. only machines sell for around that.
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nes_matt
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PostPosted: Mon Jun 22 09 12:11 am    Post subject: Reply with quote

It was AC/DC... Confused Crying or Very sad Sad
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300sniper



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PostPosted: Mon Jun 22 09 3:17 am    Post subject: Reply with quote

XtraCheez wrote:
a stick weld is stronger that a MIG/TIG weld


huh?
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k.a.m.
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PostPosted: Mon Jun 22 09 3:28 am    Post subject: Reply with quote

nes_matt wrote:
It was AC/DC... Confused Crying or Very sad Sad


Thats tough my man sorry Sad
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nes_matt
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PostPosted: Mon Jun 22 09 3:53 am    Post subject: Reply with quote

FWIW,

While searching through CL to look at welders on the used market, I found a retired guy locally that gives welding instruction out of his home shop. He's got a variety of welding equipment and 40years as a professional welder and instructor. $45/hour instruction. Might be worth spending a few hours with him. I'm going to set up an hour this week just to get a feel.

Matt
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Smoked Up
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PostPosted: Mon Jun 22 09 5:36 am    Post subject: Reply with quote

nes_matt wrote:
FWIW,

While searching through CL to look at welders on the used market, I found a retired guy locally that gives welding instruction out of his home shop. He's got a variety of welding equipment and 40years as a professional welder and instructor. $45/hour instruction. Might be worth spending a few hours with him. I'm going to set up an hour this week just to get a feel.

Matt


That will be money well spent. While you are at it, you should inquire if he will give you three lessons for the price of two, or something along those lines. If you have any interest in welding, I can assure you that one won't even get you well acquainted with the machine.
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J0K3R-X
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PostPosted: Mon Jun 22 09 9:10 am    Post subject: Reply with quote

Sounds like a good idea! I wish I would have had some one on one time with a professional welder, would have saved me a ton of money in flap disks lol! I am still no pro at it but I think my welds are pretty good now.. I still feel more comfortable with a stick over a MIG but that is probably just because that is what I picked up first. Get your self some scrap metal and play around first to get a feel for it before you start trying to build something.. I have made alot of stupid mistakes and I will probably make some more but that is how you learn in my opinion. If you can get somebody to teach you in person with the basics you will be on the right track and it will be well worth the $$! There are also alot of real good instructional videos on YouTube for all kinds of welding.

Another thing is to ask questions like you are doing. I have bothered k.a.m. a bunch and he has always been very nice and answered my questions. I think I PM'd him maybe 10 or more times and he got right back with me with very good advice. His work is excelent so I know I am asking the right person!
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Smoked Up
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PostPosted: Mon Jun 22 09 9:18 pm    Post subject: Reply with quote

J0K3R-X wrote:

Another thing is to ask questions like you are doing. I have bothered k.a.m. a bunch and he has always been very nice and answered my questions. I think I PM'd him maybe 10 or more times and he got right back with me with very good advice. His work is excelent so I know I am asking the right person!


As have I. Poor K.A.M. can't get anything done for answering our silly questions. Mr. Green
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nes_matt
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PostPosted: Wed Jun 24 09 8:48 am    Post subject: Reply with quote

k.a.m. wrote:
nes_matt wrote:
It was AC/DC... Confused Crying or Very sad Sad


Thats tough my man sorry Sad


Well, the CL gods smiled on my today!

I found one of these that was recommended by a friend:
http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_200332691_200332691


Got it for $175 (half of retail though it was missing the regulator - ~$50 to replace) and picked up a 10lb role of flux core wire to go with it.

Found the only steel I had laying around (galvanized). Made some ugly welds, then some less ugly welds, and one almost decent looking weld. I'm guessing I'm poisoning myself welding the galvanized. It makes an awful stink!! But maybe that's the flux core wire?

Anyhow, this is going to be fun!
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k.a.m.
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PostPosted: Wed Jun 24 09 8:58 am    Post subject: Reply with quote

nes_matt, no that would be the Galvanized metal. Do your self a favor and find some mild steel, getting sick on those fumes is no fun. Been there done that. Thats a nice little wire feed, you wont need the regulator as long as you stick with the flux core.
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k.a.m.
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PostPosted: Wed Jun 24 09 9:02 am    Post subject: Reply with quote

J0K3R-X and Smoked Up, thanks for the kind words. I am always ready and willing to help where I can. And I believe there is no such thing as a silly question so ask away, if I can help I will.
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RedneckRocket
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PostPosted: Wed Jun 24 09 9:15 am    Post subject: Reply with quote

Yep. KAM is correct. Get rid of that nasty metal, and get some mild steel. That stuff can make you very sick. Had a buddy end up in the hospital because we were welding in a factory on that stuff. We were young back then and they didn't care enough to even tell us that we were supposed to wear masks. He ended up bad sick. Great score on the welder to. You will have a great time learning on that, and it will serve you a good long time.

R.R.
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