bejant wrote:@crobar, I think you've made it too complicated. The plan view is a circle so the Sweep Path would be that portion of the ellipse between the inclined tangents of the handrail:

You could make 3 line segments (one line segment from tangent to tangent on the ellipse plane, and another two segments from the endpoints of this segment to the midpoint of that portion of the ellipse between these points on what will be the (arc of) ellipse plane. Use Part WB to make a Face from these 3 edges (tick Planar to True), then use Part WB > Extrude (tick Make Solid to True) and Extrude the plane downwards to create a solid. Change to the Part Design WB, create a Sketch of the top face of this Extrude, and Sketcher an Arc of Ellipse on the Extrude. You can use Link To External Geometry and make the endpoints of the 3 edges lie on the Arc of Ellipse. This will be the curved portion of the Sweep Path.

This is really helpful, thanks, I was planning to start figuring this out once I knew sweep or whatever would actually work

bejant wrote:You would only need to use one cross-section of the handrail profile. It would probably be easiest to correctly locate it at the end of a straight length of the handrail, then create the Sweep (tick Make Solid and Frenet to True). This should make for a smooth Sweep.

This off the top of my head so I hope that makes sense.

Unfortunately sweep won't work because you cannot control the profile rotation in the sweep, that's why I'm looking at loft instead.