Complex Drafted Ribs: The base block is created from a Boss Extrude. The side walls are drafted and the corners are rounded. The walls are shelled and the surface is cut in half to be mirrored. The split line divides the faces and forms the new intersection of the drafted rib. This rib is complex as is goes from a circular edge to a straight edge. The Mirror feature is used to form the rest of the part. Fillets are used to finish off the corners.
Download: Complex Drafted Rib
Features: Boss Extrude, Shell, Surface Cut, Fillet, Mirror
DraftSight Download: In conjunction with DraftSight, Dassault Systèmes’ 2D CAD product, the 2D drawing(.dwg) file of the Complex Drafted Ribs tutorial is now available for download here.