Create 3D Sketch

[yellomello]

I'm bran new to CoCreate Modeling and explicit geometry-based modeling, but I'm trying to do an assignment and would really appreciate any help.

I have a CoCreate model of a box frame assembly, and I have to remake the geometry of the frame using single lines, center-lines down the middles of the frame tubes. The 3D sketch then has to be exported into an FEA program for analysis.

I have tried to export this file as an IGES to Solidworks and creating planes and a center axis for every tube and then creating a 3D sketch of the geometry, but the frame assembly is quite large and this process is very slow. I am staring at the hourglass for 90 seconds for every axis that I add...

If someone can help me by telling me how I can do this efficiently in CoCreate it would save me a lot of time.