This OpenSCAD design is parameterized so you can justify this part completely. Like thickness of the cilinder, or angle.The beauty of this is (I love openscad it is quite addictive......) that if you already drilled some holes, you can just measure the distance of the holes and put it in the model.Next the ideal support rod will be calculated so you don't have to drill extra holes in your expensive shower cabinThis design is version 3. I removed v1 and v2 because there is really no need for it anymore. In v3 I improved upon my OpenSCAD coding skills and inserted some inline comments.