Hi Friends ,
Continuing the most particular knowledge
Polyhedra world , of those interested will find here:
http://www.mediafire.com/file/yir88miie279n5i/M__Pipe_Frame_%2526_Knot_Polyhedron.zip/file
a Macro that I think can be useful ..
at least I hope..
-Pipe Frame and Knot on Polyhedron -

Have a nice weekend everyone
al