I'm trying to setup this linear motor piston that willpush and pull the door open and closed. I have a hinge mate at the hinge concentric at the end of the piston and the wall bracket, and a concentric mate at the trunnion. The motion study continuously fails. I have a limit mate in the piston. I've tried suppressing it with no luck. When setting up the motor i'm a bit confused as to what gets selected in the setup portion. thoughts? thanks in advance!