Years back, I trained a new apprentice to tack weld and square up HVAC duct, mainly so he'd learn about welding and fit up, while I was able to do more important tasks elsewhere. He somehow got the idea to use one welder to calibrate the other welder. That's when I started asking "Do you have any questions before I go?"Originally Posted by johnnymg
That's very cool you were able to get some free material to practice on! So much drop is wasted in shops that use large quantities of material daily. A few of the shops around here donate excess scraps to the local JC and high school shop programs.
Edit: I forgot to ask what your method was for welding the 2 pieces together. Are you running a straight bead, or weaving across the gap to join your 2 parts together? You can try many different motions including circles, half circles, whipping motions back and forth, etc. Or you can just run a straight stringer bead by dragging the stinger along at a steady pace.
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