https://forums.autodesk.com/t5/inventor-forum/symmetrical-pattern/m-p/5778933#M364119 <P>Hi Jimmy,</P><P>I would say - it is a matter of preferences and a particular modeling case.</P><P>Cheers,</P><P>Igor.</P><P>&nbsp;</P><BLOCKQUOTE><HR /><a href="https://forums.autodesk.com/t5/user/viewprofilepage/user-id/2904520">@JimmyDoe</a> wrote:<BR /><P>&nbsp;</P><P>As for the deriving the door into a part, mirroring it and then placing that in the assembly. Isn't that just doing the same thing as mirroring in the assembly? Since when you mirror something it just makes a derived copy of that part? You're just doing it one level below?</P><HR /></BLOCKQUOTE><P>&nbsp;</P> Thu, 20 Aug 2015 01:52:48 GMT IgorMir 2015-08-20T01:52:48Z