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Old 09-20-2014, 08:39 PM   #197
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That frame actually looks pretty good, try a wire brush on an angle grinder to prep for paint, if you get it smooth and flat, the paint should level out nice..... And really,,,, once you get the belly pan on, who will know if it isn't pretty.
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Old 09-20-2014, 09:20 PM   #198
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Quote:
Originally Posted by J. Morgan View Post
That frame actually looks pretty good, try a wire brush on an angle grinder to prep for paint, if you get it smooth and flat, the paint should level out nice..... And really,,,, once you get the belly pan on, who will know if it isn't pretty.
I think he will know and thats what matters. I am the same way, sucks going thru life like this but its a curse that some of us have.
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Old 09-20-2014, 10:12 PM   #199
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Haha Shaggy! Yes it is a curse! Sure, I have very nice things because of this curse, but my weekends are all pissed away.


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Old 09-27-2014, 07:02 PM   #200
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I tried replacing the shower pan. Please help.

FINALY! Started welding. Beefed up the welds on all the outriggers, and well, everything else too. And started boxing in the frame in the back.
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And step by step boxing in the frame (these welds are not pretty, but they are strong)
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Old 09-27-2014, 08:52 PM   #201
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Okay this is not meant to be bad but your welds look a lot like mine! Your work looks great so far! Keep up the great work and please keep posting those pictures.
Cliff


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Old 09-27-2014, 09:00 PM   #202
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I tried replacing the shower pan. Please help.

MORE HEAT on those welds!!!

Crank that machine up till you ALMOST blow holes in the metal, and then turn it down just a tiny bit.

Are you using gas or flux core wire?

If gas, I think you need more or it is blowing away. If it is breezy out use flux core. You CAN use flux core and gas at the same time.
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Old 09-27-2014, 09:08 PM   #203
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I tried replacing the shower pan. Please help.

There is enough rust on that frame that it is going to try to "blow out" when you get it hot enough to weld the way it should be welded, bit you need to get your welds HOTTER.

You should be able to see a HAZ (heat affected zone) AT LEAST a 1/4" on either side of the weld to get a solid joint that will be durable over tine.
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Old 09-27-2014, 09:21 PM   #204
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I tried replacing the shower pan. Please help.

Here is an example of a HAZ where the cross member meets the frame.

http://i245.photobucket.com/albums/g...Picture299.jpg
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Old 09-27-2014, 09:48 PM   #205
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Morgan is right. Hotter. I have seen this where thin metal (possibly due to corrosion on inside) will appear to overheat/blow out sooner. If metal is same thickness you should get even penetration and HAZ is indicator.
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Old 09-27-2014, 10:02 PM   #206
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I tried replacing the shower pan. Please help.

I am not picking on you at all Marco, but now is the time to get that right, not after you gut the trailer back together.

It is just a learning curve, burn another couple of welds and post em up, and I and others will pick em apart!

Your welds do not need to be pretty at all, but they must penetrate the metal.

A mig weld that is too cold will really want to sit on top of the metal, and this is what you have going on now.

The welds are "stuck" now, but not really fused. In time and with motion they will tend to separate from the parent metal.
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Old 09-28-2014, 02:14 AM   #207
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Hey J. Morgan!
Thanks so much for the tips, I passed them all along to my neighbor friend that did the welding (I just watched and tried to learn so I can give it a whirl tomorrow)
He says: "that picture is one of the welds I re-did. However, my Mig rig is a piece of garbage, but it is too windy to use gas. The first couple welds burned right through the thin frame metal very easily, but you are right, if I had more settings on my welder it could be better, but they are strong welds. Where we burned through we added some reinforcements. So, although these are ugly, they'll stand the test of time"

I trust this guy, he has done some pretty amazing work and has tons of experience. His welder did look pretty crummy though, but beggars can't be choosers

I'll put up some more pics tomorrow, I already reached my quota (hopefully that resets every day?)


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Old 09-28-2014, 07:42 AM   #208
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Marco,
Easy... Set up a "wind break" around where you are welding. I have meld or strung up tarps or welding blankets to block wind. Works easy... If you stand near, just stand on the bottom of the tarp and hold the top outstretched with hands. Nothing formal needed.

On the welder, are you running it off an extension cord? If so, is it the largest gauge? Like 12-10? If welder can't get power it will not perform well.

Also, do you have a good "ground"? In the picture it seems you are clamped onto a painted area.

Just a few thoughts that can make a welding machine perform poorly.
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Old 09-28-2014, 07:51 AM   #209
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Great work, Marco! That's real determination. I've also been learning how to weld. I prepped the weld areas last weekend and today I'm going to fire up my new welder and get on with this frame repair.

I haven't thought about boxing in the rear section of my frame. What's the advantage of doing that?

Mike
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Old 09-28-2014, 02:52 PM   #210
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Hey Mike,
I noticed my main C channels were bent a bit in the back, I think the PO must have used the trailer to haul stuff? I'm also planning on putting a gray tank back there, so beefing it up just made sense. A box is much stronger than a C, and the new metal is way thicker too.


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