Hello dears

i assemble a cam follower with a spring schematically

i mate end two end of spring to movable plate and i make a cam mate between cam and follow part. i want when cam rotate then spring Open and close like GIF picture that attached here. but after movement and rebuild, cam part move instead of spring. please see the file in attachment. thanks a lot.

Message was edited by: Ehsan Hoseinkhani excuse me dears i change my file to zip