When I shade these surfaces, I can see an intersection; however, the curve from intersection command only creates a curve of the circle and a small section where the radius and straight surfaces meet. If I extrude a curve from the top of the radius surface, I get a different result, which I can mirror to get a complete curve. Why are the results inconsistent? How do I create these surfaces, so that the curve from intersection command gives a complete curve?
curvefromintersection.3dm (87.3 KB)
curvefromintersection2.3dm (83.5 KB)