Complex PVC Round Shelf Bracket

I had a idea for a complicated organizer made from PVC and brackets. I liked the look and function of the version by Eagleknot, but needed a lot more configurability. To do this I remade the brackets using the original as a reference.

In the process of remaking these brackets I made fixed some symmetry issues and made a tighter fit on 1/2 inch schedule 40 PVC pipes without the need for tape.

I've included basic bottom, middle and top brackets in low shelf and high shelf styles because these are the most common use cases. The low shelf is based on the original design and will hold the shelf in the slot. The high shelf is designed for the same 4mm shelf to sit (roughly) flush with the top of the bracket connectors.

For more advanced users I've broken out each component so it can be combined into what ever shape you need. These components can be combined in slicer or in a mesh editor. In slicers this would generally be the same process as used for multi-material prints but simply