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Sweep Along 3D Path While Maintaining Orientation In One Dimension

Question asked by Jim Sculley on Dec 16, 2020
Latest reply on Dec 17, 2020 by Jim Sculley

Surfacing Experts:


If I have a saddle shape like this:



Is there a way to sweep a line using the outside edge as a path such that the line is always directed radially outward when viewed from above and end points are always in a plane parallel to the plane of the end points at every other point along the path?  So, looking at the above from the side, the sweep profile would look like this:


From the front the sweep profile would look like this:


And from the top:

I can get close with either Radiate or a Loft with guide curves, but both end up with some tiny geometry errors that prevent me from doing what I need to do later in the model.