this is what i tried select each individual cart and load as driven + select the wheel as driver and both on rotate x i then pressed key in the driven key window at the first and last frame i selected the carts on first frame on timeline set a key and rotatation at 0 on last frame set keyframe and rotation at -360 the same was done with the wheel but with +360 when i play the animation there's no movement Im doing something wrong somewhere sorry im a newbie I managed to get some movement i have the wheel rotating 360 but the cars stay in the same position and just rotate 360 fixed.