Sorry the pics aren't that great, But it will show where and how this works. The Vex motor will push the slide system back/forward and this will be connected to the rod that is connected to the arm. All I need is a rod pivot to connect the arm rod to the slide. The sldie is very smooth and stable. The gearing is fairly quite and I'm happy with this. Once I get this completed, All you will see is the small rod in the arm area and I'll paint it to hide it from view.