Free form Model to 3D Lines

HI GUYS, can anyone help me on converting the attached model into 3d lines. THANKSCONVERT 3D|attachment (6.1 MB)

have you tried the “Silhuette” command from the “curve from object” toolbar?
With round tubes you will have the silhuette curves in the direction you look at the model. And in no other direction.
How do you want the tubes to be shown?
Curve from object is a rhino command of course…