Finding center curve of a tube like solid

 From:  HansChristian
10098.19 In reply to 10098.15 
Hi Pilou
It's looks very nice I must say :-). I'm not sure that this would solve the problem in general if the cut out shape is formed by fillets/bevels. I would also like to be able to shape the surface afterwards. For example change the surface from a tube to a more elipse-like shape.

Anyway I can get some inspiration and tricks for Moi in general from you and others in that thread. Thanks!