The center leg is one of those parts that I didn’t get a lot of progress pictures of, but it’s built just like the side legs.
The leg is made from three layers of plywood. I started with a paper template and used that to cut the outer two layers.
The center layer is just like the ankle on the outer legs. Once three layers were assembled I skinned the sides in styrene just like the outer legs. You can see the skinning in this picture.