https://forums.autodesk.com/t5/inventor-forum/patterns-and-constraints/m-p/5662923#M373432 <P>Hi and welcome to the forum!</P> <P>&nbsp;</P> <P>It <EM>might</EM> be possible, but the code could be pretty complex.&nbsp; I think there are easier ways to do what you want.&nbsp; I would instead constrain to the assembly origin (best) or at least to the first component in the pattern.&nbsp; Then you can control the offset so that it follows the last component in the pattern, regardless of how many elements the pattern has.</P> <P>&nbsp;</P> <P>If you have an example assembly, attach it here.&nbsp; Or at least an image that shows what you are trying to do.&nbsp; If I have a better idea of what you are trying to accomplish, I could work up a simple example that demonstrates what I suggested above.</P> <P>&nbsp;</P> <P>Cameron Whetten<BR />Inventor 2014<BR /><IMG src="http://download.autodesk.com/us/expert_elite/ADSK_Expert_Elite_Icon_S_Color_Blk.png" border="0" width="20%" height="20%" /></P> Wed, 03 Jun 2015 15:43:41 GMT cwhetten 2015-06-03T15:43:41Z