Custom stiffeners for rudder cable guides

I did not much like how the tail of the 3.2mm rivets fastening the plastic rudder guides would deform the RF ribs, owing to the compression of the guide material. To avoid this I manufactured stiffeners from 1mm 6061-T6 that would greatly reduce this effect by spreading the compressive setting forces of the rivets across the plastic surface, and also stiffen the ribs themselves in the vicinity of the rivet tail. Stiffeners were made for both surfaces of the plastic cable guides