Just one other "thought" because lots of people read these kinds of threads...
Many of our panels are compound curves or curved in some manor... and they take a bit of hammer and dolly work as you weld in patches etc... these clamps are good for flat and STRAIGHT cuts etc. Many times the patches I'm making are not straight... they're shapes with curves and around other stuff and on and on.
I've always just used a variety of clamps (you can never own enough of them) - and or magnets - or I've welded on temporary "hand holds" etc. Once you put a tack or two on the piece -- then it's "there" and there is much other consideration - like trying to control warpage -- and shrinkage -- and all manor of other nuances to these types of "jobs".
Just thinking out loud here....
|