blasted spot welds
Oooooohhhhhh, might explain some issues I had many years ago on a job I was doing using a spot welder Dad had dragged out of his shed and got insulation tested before he'd let me touch it. Need clean clean metal on all surfaces. I also noticed there's not much time between a smick spotweld, and something that looked like a rough impact crater.
BTW, on a side note the welder had no arms or points so I first tried making steel arms and copper points but too much resistance (from the steel) of course. So Dad to the rescue again when we were visiting my late Grandfathers place and he ducked into the old garage and from some hidey hole brought out two offcuts of almost 1" brass rod about 15" and 20" long that Grandad had 'rescued' from the scrap wagons at the submarine base at Albany during the war! He saved them for a rainy day...
Regards
Alex
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M3 Grant, Val, Ferrets, WM20, CMP's
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