https://forums.autodesk.com/t5/inventor-forum/surface-modelling-shelling-error/m-p/5527367#M384388 <BLOCKQUOTE><HR />@Anonymous wrote:<BR /> <P>....&nbsp;how can I begin to resolve my problem?</P> <P>&nbsp;</P> <P>...</P> <P>&nbsp;</P> <HR /></BLOCKQUOTE> <P>Attach your *.ipt file here.</P> Wed, 04 Mar 2015 00:02:16 GMT JDMather 2015-03-04T00:02:16Z