All steel, no welding, 2000x1300x250mm

[eurikain]

Alright I understand what you are saying now :) !

But a more general understanding of what you are saying is (correct me if I'm wrong):

If you go with round rails then make a simpler square profile structure, no need to make that laser cut monster

+

Cause if you dont clamp them well against that edge prior to soldering, you will need to epoxy level below the rails.

= Forget the IKEA-like nuts and bolts to fasten the plates. Just weld it together. May be make bigger joints so I have larger spots to weld.

?