I’m again playing with Rhino. I’m trying to extrude a simple profile along an arc. I get unexpected results. (see pics) In Sketchup I just have the profile follow the arc and get what I want.
In RH I made the the shap in curves, made a surface from the curves, the used “ExtrudeSrfAlongCrv.” I get a very odd shape. Obviously the surface is not extruding perpendicular to the curve. I can’t find anywhere to specify this. Am I using the wrong tool?