50mm PU ventilation pipe adapters, connectors and fan adapters for cupboard ventilation

This project involved turning a normal household cupboard into a safe and cool place to keep our home media server. By safe, I mean ventilated so that the temperature stays at sensible levels to ensure the long life of the equipment. This project has all of the 3D printed parts I created to achieve the purpose and I have included the OpenSCAD and stl files. If you use or adapt then please credit me. I use normal super glue to stick all parts together.

Interestingly it was fairly straight forw