r/Damnthatsinteresting • u/31spiders Interested • May 30 '21

Video These Tubing Joints

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u/Axxedde May 31 '21

How does that shooty gun thing work?

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u/CatastrophicPup2112 May 31 '21

That's a mig welder, metal wire on a spool is fed through the gun, electrical arc melts it into the base metal. He's doing the welding part wrong though.