Attachment 215314
All the steel parts were sandblasted and sprayed with phosphoric acid. In this picture I'm leveling the beams. I shimmed them level and clamped blocks to the saw horses. Once satisfied everything was perfectly level, the blocks were screwed directly to the saw horses and the clamps were removed.
Attachment 215316
Clamping and welding the first cross member. A 2x2 angle was used to support the 3x3 and keep it flat and square to the frame sides.
Attachment 215318
The top is done. Perfectly flat and square!