https://forums.autodesk.com/t5/inventor-forum/inventor-studio-question/m-p/5612589#M377646 What I do is I have 2 sets of moving hardware. At the begining of the animation the second set that will move from the large od to the smaller od is faded to 0.<BR />I animate the first set to the large OD then at the same point in time I fade out set 1 and fade in set 2 Instantaneous so you can not see the switch. Then I animate set 2 to the smaller od. Wed, 29 Apr 2015 14:17:27 GMT Anonymous 2015-04-29T14:17:27Z