ok this should be the LAST time i ask this question.
how the heck do i make it so an object will follow a certain axis (in this case y) when it moves. Im trying still to animate an engine and need the piston head to stay on the y axis. Right now it has the correct orientation but always moves left to right (kinda like it has piston slap). Ive tried using an Empty but that just makes it so that it points in odd directions.