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Old 12-17-2015, 05:19 PM   #21
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I am in the process of patching all the bolt and nail holes in my floor now. I am using the tin caps that you use to nail down roofing felt. Right now it looks like the bus has chickenpox!

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Old 12-17-2015, 05:30 PM   #22
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Amazing how many holes are in that floor. Mine are covered with linoleum (in the middle) and padding and carpeting on both ends. The cockpit and entry are still original and are my mudroom.
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Old 05-02-2018, 11:38 PM   #23
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Ok so this is most likely going to sound like a extremely newbie question but here it goes anyways . I'm very new to welding ( like 1 day in ) and don't really get how to attached the welder ground to the floor to weld the holes ? Can I put it on the lower wall next to the floor ? Or I was thinking about maybe putting one of the nails back in and clamping to that ?
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Old 05-03-2018, 12:06 AM   #24
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Originally Posted by mikerob643 View Post
Ok so this is most likely going to sound like a extremely newbie question but here it goes anyways . I'm very new to welding ( like 1 day in ) and don't really get how to attached the welder ground to the floor to weld the holes ? Can I put it on the lower wall next to the floor ? Or I was thinking about maybe putting one of the nails back in and clamping to that ?
You can put your ground anywhere there is exposed metal of the same type that has a connection uninterrupted by paint or rust. I was able to weld my floor holes by clamping the ground to the exposed bus ribs.

If you haven't gutted yet or otherwise have no exposed metal, you could just grind a little paint in/around a floor hole off, put a steel bolt in the floor, and clamp your ground to that.
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Old 05-03-2018, 12:54 AM   #25
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You can put your ground anywhere there is exposed metal of the same type that has a connection uninterrupted by paint or rust. I was able to weld my floor holes by clamping the ground to the exposed bus ribs.

If you haven't gutted yet or otherwise have no exposed metal, you could just grind a little paint in/around a floor hole off, put a steel bolt in the floor, and clamp your ground to that.
I have the walls gutted and the ribs are exposed, ill try and ground to the ribs and give it a go tomorrow. Thanks for the help! Now hopefully i dont burn through the thin sheet metal with my lack of experience . I also had a,friend tell me to get a respirator before welding the floor because the galvanized metal offgasses . is that true ?
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Old 05-03-2018, 02:35 AM   #26
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I have the walls gutted and the ribs are exposed, ill try and ground to the ribs and give it a go tomorrow. Thanks for the help! Now hopefully i dont burn through the thin sheet metal with my lack of experience . I also had a,friend tell me to get a respirator before welding the floor because the galvanized metal offgasses . is that true ?
I can only speak from experience here, but I had no issues with blasting through the floor. My floor is 14ga steel, not galvanized.

If you find yourself blasting through, turn the voltage down slightly or go slower. If your floor is galvanized, then yes, wear a respirator. If not, you don't have to worry as much, but be weary of smoking paint and/or bus undercoating. It shouldn't catch fire though.
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Old 05-03-2018, 09:49 AM   #27
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Welcome. And learning to weld is a skill you will get a lot out of. Especially building a Skoolie. Check out the magnetic ground clamp below. It is a handy little device that makes getting a good ground on flat sheet easy.

https://www.northerntool.com/shop/to...CABEgIOSPD_BwE
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Old 05-03-2018, 11:56 AM   #28
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Welcome. And learning to weld is a skill you will get a lot out of. Especially building a Skoolie. Check out the magnetic ground clamp below. It is a handy little device that makes getting a good ground on flat sheet easy.

God I wish i had known about that sooner.

Sometimes I have nothing to clamp to and just lay the ground on the work surface, and sometimes the ground tries to tack to the surface. It hasnít been a significant issue yet, but I do find it annoying.
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Old 05-03-2018, 02:37 PM   #29
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Cheap and mighty handy to have around. And...always try to keep your ground as close to your weld point as you can.

One other "Bus Welding Note"...

You should never weld on any bus (or car, truck, tractor, whatever) that has any computerized systems without disconnecting the battery. The feedback can eat the engine & tranny electronics so it is best to be safe and disconnect the battery.
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Old 05-03-2018, 03:41 PM   #30
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Cheap and mighty handy to have around. And...always try to keep your ground as close to your weld point as you can.

One other "Bus Welding Note"...

You should never weld on any bus (or car, truck, tractor, whatever) that has any computerized systems without disconnecting the battery. The feedback can eat the engine & tranny electronics so it is best to be safe and disconnect the battery.
Awesome thanks Twigg for the battery advice and the magnetic ground.
I am still a little concerned about the galvanized issue with the flooring. In this thread
http://www.skoolie.net/forums/f10/pa...loor-6351.html
He talks about how bus floors are galvanized.
If this is true what kind of respirator do I need to get before welding.
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