Raspberry PI 3 Slim Case with 30mmFan and Optimised airflow

I found this very beautiful slim case made by thatdude333:

https://www.thingiverse.com/thing:1415895

But, it wasn’t possible to have a whole on the bottom face for my heatsink (really necessary??).
So I have copied/remixed his case with:
- Additional Fan 3x3 cutout on top
- Specific inside corridor to optimise airflow
- Added cutout for back heatsink
- Different top versions for Nothing/Camera/Camera+Screen ribbons

Case used for AstroPrint.
Works very well with FlashForge Creato