I made an assembly with multiple parts, that will be fixed using a SLS 3D printed structure. The structure will be some kind of skeleton, that can be represented using a 3D Sketch, similar to the attached image.

I did not find any function that allows to do that. the closest function I have found is the Structural Member Fonction, that does not allow for plain square, or cylinder profile.

How is is possible to make such a skeleton part out of one such sketch?

Thank you,