http://www.zwsoft.com/forum/viewthread.php?tid=1849 What reasons would a 3D polyline NOT extrude along a path? I have an parallelogram-ish shaped 3D polyline, All points along one plane. with a perpendicular line to "Path" along. Yet it wont work. Why would this be? zw_admin 2011-09-11 19:18:15