Pinholes

[7E-Bodies]

@Rbob very well stated. Especially the eggs frying statement. I was taught bacon sizzling many moons ago when I mig welded production/piece parts, but same concept and excellent advice.

[Swamp Donkey]

This is all great advice.   Sometimes with YouTube videos, the person doing the explanation is so good at welding and have like 10,000 hours in, that it is just second nature to them and little tips like you guys are describing are missed.  I'm slowly getting better!  This is not my welding or picture, but it does make me feel a little bit better about my welding.  Haha



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[tparker]

Your welds look like mine. I had to double check to see if this was my post. LOL. I am not sure if it is technique or setup that causes the pin holes. I suspect a little bit of both. I personally try to get it setup the best I can and sometimes it just works better. But when it isn't, I just grind and fill it back up. I think gas can make a difference as well as playing with speed and heat. Also ensure you have a good ground.

Probably not much help. LOL, But keep at it.

[7E-Bodies]

As for grounding, try and attach your ground clamp as close to your weld as possible. I'll often use a wide mouth vise grip and clamp my ground onto it. Then I'll cheat and use that clamp as a hand rest since my hands can get shaky. I've also noticed after doing a lot of stitch welds behind an auto darkening lens, that I still wind up with eye irritation later. I thereby try to eclipse the arc partially with the nozzle of the gun and intentionally blink as I squeeze the trigger to allow for that micro second delay in lens darkening. Protect your eyes at all costs. Lungs too. I always like to chime in with some safety pointers as I've learned the hard way a time or two. Also double check for flammables beforehand and hang around the area for an hour after you shut the welder down. This offers assurance that a berry isn't smoldering somewhere. I always valve out my argon bottle too, as I have yet to see a mig not slowly leak it out over a few days and refills here are $55. Just an extra