I'd say the hull colour was definitely a joke, although performance anxiety is never a joke :lol: It's a 3/16" hull, so lots of meat to work with. There definitely doesn't seem to be any "magic bullet" with respect to overhead MIG, at least as far as settings etc goes. Probably going ...

I weld overhead MIG aluminum with pulse-on-pulse frequently and successfully. Does your Mig machine have pulse? I wish :D Minnesota Dave, dude, what possible difference to the welding could hull damage have? Colour and will people be watching? Absolutely, there must be an ASME procedure for those.....

Man, it seems no one out there has ever had to weld in this position, and maybe for good reason. Weld shop, thanks for the advice, but I can't imagine fabbing something up to practice on inverted. Guess I'll just pull the motor and flip it, no way I want to practise on the hull. My boat is actually ...

Howdy gents I've searched quite a bit on the net to find some info on inverted MIG on Aluminum without much success. I need to do some work in the bottom of my boat hull, and it would be much easier to not have to pull the motor and turn it upside down. I've welded for years but am certainly not a j...