Windowpane/Balcony Planter Box Support

3D modeled and printed a window box planter support for my balcony. It's only 15% infill, which might not workout in the long run but I'll continue to test it out. Please increase the infill density as you see fit! I didn't print it in PETG, which I may regret later but since this is only prototype number 3 I'll see how it handles the summer (that is if it fits nicely on my rail as planned, I'll be testing it this evening.) The PLA might just straight up melt in the summer heat, we'll see haha