The welding bench is set up on 4 large casters that I had around. It is a 4 x 6 x 1/4"tube frame in the shape of an H. Vertical framing uses 2 1/2" x 3" x 1/8" tubing that I had around the shop. The shelf is 1/8" plate steel and the top is 3/8" plate steel. The projection on the left is removable. I am also working on some crank down feet to stabilize the unit. It rolls too easily on the big casters.
Also pictured is a paint booth (powered by 5 hp exhaust fan). It is a bit uglier now having some use.
I also changed my old single grinder stand to be a triple vise/grinder stand. I have done quite a bit more including cabinets, lathe, mill and a woodshop (that is if you guys are into that, too). I will post the pix if others are interested.