@mac1 said:
Gm
Have you looked at the follow me tool that is part of the SU tool sets. There are also several plugins: pipe along path: tube along path ,or follow me and keep also but follow me should do the job unless you what a rect cross section. It has a tendency to rotate ,so if that is case use follow me and keep.
I,ve attached a tutorial Gully (I think) did several years ago that may help you make a decision[attachment=0:km19rhru]<!-- ia0 -->pipe_layout.skp<!-- ia0 -->[/attachment:km19rhru]
yes thank you i have tried the follow me tool and also the profile builder, i am going to read your link