About this 3D model

I am Joseph Shropshire. My sons (William 15 and Lucas 13)and I worked with Fusion 360 to come up with 2 designs. The first is meant to span your 2 1"x2" boards to react the moment cased by the cantalever that is the spool holder. The second is a simple clip on design that is meant to attach to the 1"x2" furthest from the wall. We believe that this will have to be a Nylon to have the appropriate durability and stiffness to clip on and to hold the weight.