My cut area is just 4 feet by 2 feet so the work is not huge, but when pieces are cut they inevitably follow gravity away from the machine torch

The base of the table isn't exactly flat either, I messed that up by using too thin a sheet metal with too high a welding temperature

I didn't think to pick up some thinner material, the thinnest I have is 14 ga, if you think this is too much I'll make another trip next weekend and pickup something thinner.
I call upon the wisdom of the forum from some innovative ideas to make the supports. A simple DXF file would help too.