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using EMT as tubing

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  • MAC702
    replied
    Originally posted by halay
    Hello, I am an electrician and blah blah blah.
    No you aren't. You're just getting a spam link into a 15-yr old thread.

    Leave a comment:


  • Dale M.
    replied
    Originally posted by halay

    Hello,
    I am an electrician and use 3/4 EMT. It can be used anywhere as a strong conduit. Recently, I created a hammock stand with an EMT conduit. I would recommend it for buggy cages.
    Obviously you know nothing about building roll cages for automotive use.... It is no where near thickness or correct diameters for any sanctioned racing event, and horrible suggestion for hobby automotive constructs... All sanctioning events I know of require DOM (Drawn Over Mandrel) or Chromemoly tube....
    Last edited by Hobart Expert; 08-11-2022, 08:01 AM. Reason: Removing link

    Leave a comment:


  • hooohaa2
    replied
    Originally posted by MadMax
    I was told, if you do weld Galv., and get sick, to drink as much milk as you possibly can. I think it had something to do with something in the milk(not sure), getting rid of the zinc. I'm not 100% positive on this though.

    -Max.

    Just pop a few codeines and forget your troubles.

    Leave a comment:


  • MadMax
    replied
    I was told, if you do weld Galv., and get sick, to drink as much milk as you possibly can. I think it had something to do with something in the milk(not sure), getting rid of the zinc. I'm not 100% positive on this though.

    -Max.

    Leave a comment:


  • James D. Clark
    replied
    You don't weld to the galvanized, you burn through it. If you have roll bars on an open vehicle (old roadsters with a cloth top-like an open sun roof), put a metal sheet over the seat in case you roll on top of a post. Yes, it did happen.

    Leave a comment:


  • darelldd
    replied
    Thanks, real.

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  • realhfd
    replied
    I made some panels to go around the wife's garden boxes out of 3/4 emt. Made the frames and then tied checken wire to them. I found it a little easier to weld after grinding off the coating.

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  • david_r
    replied
    moody,
    Just so you know, there is a difference between being dead and wishing you were. Zinc poisoning falls into the latter.

    Darrel,
    You can get cold-galv compound to cover where you burn off the galvinizing. Beats painting the whole thing.

    Leave a comment:


  • moody
    Guest replied
    as an electrician/welder ide say dont use EMT pipe for a frame

    it is way too weak

    and its galvanized metal which is not good for welding as it makes deadly fumes when heated by the arc

    Leave a comment:


  • Sberry
    replied
    The coating on emt is quite thin but I do try to keep my head out of the fumes. Just some basic precautios and you will be fine. A light fan blowig real gently will do the trick. I dont usually clean it but you can, maybe even a wire wheel on a bench grinder to take some of it off will help. Some brands have thicker coating than others.

    Leave a comment:


  • hooohaa2
    replied
    Originally posted by darelldd
    Neat. Was just meaning to start a topic on welding this same stuff. I'm just making some vegetable growing cages out of it - so no worries about life and limb! What's the real deal with welding gavanized metal? I know the fumes are to be avoided - and I know it is best to first grind the stuff off - but is it possible to just weld to the galv? Any neat tips to share for same? Right now I have everything screwed together, and I hate all the rough edges, and the screws that are now rusing. I'd love to weld it all and remove the screws and then probably paint it.

    Thanks for letting me veer this existing thread is a wee bit off course.

    Don't worry about it, thats the way it was heading anyways.

    Yeah, stay away from the fumes, no fun having galvi flu.

    Leave a comment:


  • darelldd
    replied
    Thanks, Mike. I have some good ways to avoid the fumes - I thought that it wasn't even possible to weld to it for some reason. Good news!

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  • Mike W
    replied
    You can weld over it but you want to avoid the fumes.

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  • darelldd
    replied
    Neat. Was just meaning to start a topic on welding this same stuff. I'm just making some vegetable growing cages out of it - so no worries about life and limb! What's the real deal with welding gavanized metal? I know the fumes are to be avoided - and I know it is best to first grind the stuff off - but is it possible to just weld to the galv? Any neat tips to share for same? Right now I have everything screwed together, and I hate all the rough edges, and the screws that are now rusing. I'd love to weld it all and remove the screws and then probably paint it.

    Thanks for letting me veer this existing thread is a wee bit off course.

    Leave a comment:


  • Sberry
    replied
    Ridgid will cost as much as bare structural tubing and I doubt if the steel is QC very well in it. Its galvanized so thats not good either.

    Leave a comment:

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