https://forums.autodesk.com/t5/inventor-forum/smart-assembly/m-p/5564046#M381448 <P>As mentioned above, you have a few choices. I think an iAssembly would be your best bet, but I'm wondering, are the different lengths set lengths or can they be random?</P> <P>&nbsp;</P> <P>If they are set lengths, iAssembly is a perfect fit.</P> <P>***update....I meant iLogic***</P> <P>If they are random and can be any amount, that's where I'd create the assembly where it prompts you for the distance.</P> <P>&nbsp;</P> <P>If you don't want to do any of those and insist on making the assemblies a one-off, you can insert any Content Center part as a "Custom" part by selecting the check box in the insert dialogue box:</P> <P>&nbsp;</P> <P><IMG src="https://forums.autodesk.com/t5/image/serverpage/image-id/161133i5E1F65720D44EFBC/image-size/medium?v=mpbl-1&amp;px=-1" border="0" alt="CCC.JPG" title="CCC.JPG" /></P> Mon, 30 Mar 2015 20:22:39 GMT Anonymous 2015-03-30T20:22:39Z