Here is the "finished" product. Actually, its as finished as I can get without getting more materials. There will be a removeable back panel 24" high, and removeable side panels. The will be 22 guage sheetmetal with some beading for support. To make them removeable, I will tack them onto a 1" square tube, and slide them into a stake pocket. There will also be a couple "gun" receptacles to hold the mig & tig, and an insulated one to hold the sticker stinger.
The design is so that I can weld or plasma cut with shorts on. Its portable so I can work anywhere in the shop. :-)
For those really interested,its 2x2x3/16" angle constrcution ,a 30 x42 top of angle with (6) 30" top angle "grates". The pan is 16 gauge. WHEN FIGURING, BE SURE TO CONSIDER THE ANGLE when laying it out. The 41-1/5" top tapers to a 12" bottom. Its 23" long. The sides are 29-1/2" tapering to 12". THIS IS ABOUT 27" LONG. Remember your following the trapezoidal length. I caught this during my layout, fortunately! The pan measure 12-1/2 square, by 8" tall. You can adjust your x brace for whatever pan you want. The legs are 32" long, with 4" castors.
Now! Why I selected the angles for the top ! I intend to use 2 different tops for this. A 30x30 x1/2" plate top or a 30x42 x1" bar grate with 1/4" bars spaces 1" on center. If I weld (4) clip angles to each, I can register them on the angles that are welded to the bench. The plate top would be for fabbing something that requires tacking it to a flat benchtop.
Here is the bench without the castors or the catch pan,
and then a pic of the layout for the pan. The tabs to reinforce the corners are not shown in the pic. The material for the hemmed top edge does, though.
I had to see what she'd look like. So I dropped it down on the springs to see if the centerline would change under load. If I wasn't so tired, I would have dropped the motor in and set the front fenders to get a more accurate ride height. I think its coming along OK. It just needs a larger slice of my time.