When I create hundreds of nodes using a frustum Mesh, my STL file has non-manifold areas. I used Meshmixer by Autodesk to repair them, and some of the features of my object disappeared. When it’s finished there are 5 ar…...Frustum mesh area non-manifold Aspose.3D Product Family net ssides0123...hundreds of nodes using a frustum mesh, my STL file has non-manifold...