https://forums.autodesk.com/t5/inventor-forum/lock-rotation-option/m-p/5773883#M364209 <P>Use a Rigid Joint.</P><P>&nbsp;</P><P><IMG title="2015-08-17_14-56-52.jpg" alt="2015-08-17_14-56-52.jpg" src="https://forums.autodesk.com/t5/image/serverpage/image-id/183811iA538CD3F3EA3A362/image-size/original?v=mpbl-1&amp;px=-1" border="0" /></P><P>&nbsp;</P><P>For Constraints there isn't a checkbox or something.</P><P>&nbsp;</P> Mon, 17 Aug 2015 12:57:26 GMT Marco.Takx 2015-08-17T12:57:26Z