https://forums.autodesk.com/t5/autocad-forum/converting-dwf-file-to-stl/m-p/5785273#M315235 <P>Patchy, I get a bunch of the below errors when using your DWG.</P> <P>&nbsp;</P> <P><STRONG><EM>Modeling Operation Error:</EM></STRONG><BR /><STRONG><EM> Inconsistent edge-face relationships.</EM></STRONG><BR /><STRONG><EM>The Boolean operation on solid and/or surface bodies failed.</EM></STRONG></P> Mon, 24 Aug 2015 17:43:25 GMT Anonymous 2015-08-24T17:43:25Z