My own cutting bed grid. Scrap metal! Elevator luminary and a couple of cheap rails
Ha that’s much nicer than mine.
Old toaster oven grate and scrap plywood standoffs…
I just cut new plywood to change focus height.
If works works 
Hehe nice, I tried those which is good. but the white paint leaves burn marks under the material which is pretty annoying! so if you can try and dissolve the paint off or sandplast!! 