Second question on my "railings around a building" job.
If you really "square" the ends of the horizontal tube so that its butt against plate is very good match - tight fit with no gap -- that is going to make your welding a lot easier than when you have varying gaps with a canted-end rough cut?
Seemed to me good fit up means you can sweep around fast on a high current with a short arc and get a small neat penetrated weld even with 6013?
I found myself frigging around with the amps on the welder to avoid burn-through as the gap varied, wasting 20 times as much time as it would have taken to square-off the tubes in the first place - and producing much worse-looking welds. Is this the common experience?
I squared-up half the tubes before being stopped, leaving half with well-canted cuts, leading to this impression of mine.
How do you check "square end" on a tube? I improvised and it worked well for me - I took a sheet of paper and wrapped it once and a bit around the pipe, matching the wrap of the paper to overlap perfectly - at which you get a "square" to sight any correction made with a
4~1/2inch angle-grinder. What better methods exist?Richard Smith