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This is related to a project I've been working on in another thread but figured it deserved its own thread since it's a different question. I've been using AutoCAD 2019 for this. My question is how to get AutoCAD to correctly draw the ruled surfaces at locations with sharp angles (or is this possible?). AutoCAD always seems to make the ruled surface cut across at sharp angles. For example.. At topright is a 3D Loft with the desired result. At lower left is a ruled surface with this weird angle on the end - both using the same blue polyline which represents one of the aircraft cross sections. I've experimented with using higher SURFTAB counts but the same curve remains. It's apparent loft doesn't always have this same issue. The angle is the result of surface smoothing. So, basically, it draws a straight line across those 2 edges. For values SURFTAB1 and SURFTAB2 I've been using 60 and just using smooth later on for appearance. I've experimented using higher tabulation counts but they don't appear to affect this curve. Perhaps the algorithm used to create ruled surfaces has some kind of set value that cuts across when 2 edges reach a specific distance apart? The only solution I can think of is manually manipulating the mesh grips to stretch this thing out. I could also delete all these meshes and use lofts but don't want to waste the work lol. -ChriS