DIY Marble - Metal Machining 3 axis CNC Router

[Halbmond]

Pictures are OK on my phone.

Looks like an interesting project. On the Y axis will you be able to weld all those pieces and get flat and parallel surfaces for the carriages which connect to the Z axis?

Indeed it is interesting project and very good static and dynamic properties the bridge structure has.
We have plenty of machining centers which is capable of machining this big structures. After stress relieving we will machine all of the rail bottom plates, carriage connection plates, bearing block connection plates.
We are going to machine 4 surfaces of the bridge , one by one at a horizontal bohrwerk cnc .It will make the surface flat and paralell to the corresponding surface within tolerance of (+- 0.05)

I would be glad to get any recommendation or comment /critics, especially for the bed frame.
I can reduce the footing quantity from 4 to 3 on each side of bed frame and place triangle support plates between footing and linear rail profile.