Metal drawing (a new look)

See details https://grabcad.com/library/metal-drawing-a-new-look-1
The first steel bridge was printed (may be not yet) in the center of Amsterdam
(http://mx3d.com/projects/bridge/).
Starts a new technology: "metal drawing".
In my humble opinion, this means that you need to re-design of metal constructions
(truss, bridges, towers)
As an example, I have designed the joint with foundation for banner. (concept only) .
Workflow:
first try
Grasshopper (reaction_diffusion_2d_to_3D_gueridon)->
Rhino(convert to t-splines)->Rhino(convert to surface)->crash after 18 hours
second attempt
Grasshopper (reaction_diffusion_2d_to_3D_gueridon)->Rhino (convert to STL)->
Inventor 2016 (ONLY!)->final part and rendering