Pipe-Script?
From:
PaQ
19 Jan (2 of 8)
11911.2
In reply to
11911.1
https://moi3d.com/download/scripts/PetrsMoiPage/PetrsMoiPage.htm#Pipe
Not sure it does all the requested feature tho ?
(one nice addition would be to have a extend distance option to create pipe longer than the input curves on both side, it can help to trim surface later for manual filleting / blending)
Gallery