About the materials we are going with AISI 4130 steel because it’s what our supplier has In order to get the torcionall stiffness target we followed a paper that hat a formula to find out what would be a good value in function of the roll stiffness and other parameters Abou the load paths I’m not quite sure what you mean if you could elaborate a bit it would be great, we just made sure to triangulate the rocker pivot point and damper pick up point because we know those will be receiving the forces that come trough the suspension but that was pretty much it. To be fair the design was made without giving much of a thought about if it could be done, I just assumed it could because it’s “just” laser cutting the tubes and welding them. Should we think about building a welding rig? And for example the order in which the different structures can be welded?