Rather long video on Autodesk Inventor Tube and Pipe 2015. Check the blog as well, will be posting detailed instructions of the techniques shown here.
http://blog.adssol.com/2014/11/tube...

If you found the video somehow instructive and positive then please go to Inventor Idea Station and vote for the changes we are pushing on this outdated module of Tube and Pipe.
http://forums.autodesk.com/t5/invento...

Thank You.