Jeff Peterson shared on Thingiverse:
Another variation of the Raspberry Pi model 2 . This one uses an 80mm fan in the base. I made the first pictured at a fast low resolution speed. Made a couple tweaks and putting it up for review. I will print this tweaked version later this week. So stay tuned I may update if I find any other issues. I added a cone inside layer 2 that forces the air right up to the Pi and then has to roll down the sides to exit the honeycomb vents.
Have to attach PI to layers 2 and 3 first. Make sure to plug fan into Pi before mounting because after layer 2 and 3 together ( using 4 m3 x 16mm screws ) you cant really reach up into it very easily. Then you can place fan into base and then attach layer 1 , base , to your assembled layer 2 and 3. I used 4 #6 x 1.25 long screws to mount layer 1 to layer 2. no tapping required I found on this version everything went together by hand.
Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!
Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!