Pool Skimmer Flap

I modeled this simple replacement for the pool filter flap on my parents pool. The stock one had bent for some reason and would not stay in the hinge pin holes in the frame. so I took the old one, and being a novice modeler, I just whipped this up in tinkercad, and frankly am pretty impressed with myself at how well it worked. feel free to shoot me questions about how I made it in TC