https://forums.autodesk.com/t5/inventor-forum/cannot-move-adaptive-part-leaf-spring/m-p/5527777#M384404 <P>Adaptive parts do not update on the fly by dragging the assembly. &nbsp;You will need to set up a constraint to move the assembly either by driving that constraint, setting positional representations that override that constraint to different offset values, or just manually changing the constraint offset. &nbsp;Since the shape of the leaf spring has to be re-calculated for every position, even driving a constraint with adaptivity on can be slow and jerky, but it beats turning adaptivity on and off.<BR /><BR />Sam B<BR /><BR />Inventor Professional 2015 SP1 Update 2<BR />Windows 7 Enterprise 64-bit, SP1<BR />HP EliteBook 8770w; 8 GB RAM; Core™ i7-3720QM 2.60 GHz; Quadro K4000M</P> Wed, 04 Mar 2015 11:36:25 GMT SBix26 2015-03-04T11:36:25Z