Having an issue with AutoCAD lofted eccentric circles not display properly when linked into Revit. Lofted concentric circles display fine but any deviation away from an aligned axis and Revit has an issue displaying them. Is this a common issue? Running "Revit 2021" and "AutoCAD 2021".
AutoCAD lofted solids:
CAD linked into Revit:
This issue seems to resolve if you set AutoCAD "LOFTNORMALS" to 2 or above but i require a smooth fit (1).
Try lofting a 2 point polyline rather than a circle for the base and top. I think revit has a hard time lining up the where a "circle" starts and stops.
In autocad, trim your circle in half then create a polyline from the resulting arc and close it. This will create a circular path through two points. Repeat for the top path.
This will create seams in the resulting import but smooth solids and surfaces.
-luc
Circle paths on the left and closed circular polylines on the right.
