Hello, so basicly i can't create mesh of this frame. Any ideas why and how to fix this?
It looks like the definition of the weldment feature that creates the rectangular weldment is merging the 4 bodies into a single body. This will cause issues with the beam mesh. You would want to edit the definition of all your weldment features and make sure that "Merge result" is not enabled before trying the mesh again.
Unfortunetly unmerging didn't change anything. Option of creating a mesh separetly for specific parts is still unclickable but i can create mesh for whole model at once now.
Unmerging changed the beam joints in your mesh. So, at least those are now generating as expected. The complexity of the interfaces between you bodies probably means you will want to move in a different direction with this mesh though. You may want to go into the study boundary tree, right click on all the bodies that are currently beam mesh (noted with this icon: ), and select for them to be "treated as solid". Along with that go to the 'Global Contact Bonded' definition listed under 'Connections', right click to 'Edit Definition' and select the option for 'Incompatible Mesh'.
With those changes, try meshing again.
I found, its easier to treat all beams as solid.
Retrieving data ...