Modular Shower AngleShelf

I had a metallic angular shower shelf that over the years got rusty so instead of buying another one i decided to design a new one. I designed it modular so that you can add as many selves as you see fit. The main plate has the angular shelf base along with some “plugs” to cover the holes that are used to insert “support columns” used to connect other bases. The plugs have different heights , the one that go on top have an “T” engraved, while the one for the bottom have a “B” letter. On the main base there are 2 holes for 5mm screws to connect the base directly to fischer anchors (or whatever you plan to use to connect the shelf on the wall). If you plan to put heavy stuff on the base you might feel safer to use the optional brackets (like i did and you can see in the photos on the upper base). The brackets are printed so that the weight stress will work against the tensile strength of the printed bracket and not against layer adhesion. I am currently holding around 6kg worth of shampo