Fan duct

Dust is often an annoying problem for me. To keep the hot end and the fan case clean, I had to disassemble it frequently.
Thinking of a way to do it without having to deal with screws, I created this model with fittings.
In the end I still used screws for the side fan.
Still an idea in development.

Supports only touching the table for the air duct

*The necessary resizing and adjusts of parts for fitting was not done in the STL files.