Shared by Peter_Smith on Thingiverse:

Designed to be fitted with 120mm fan in the front. Pi sits on the top drawer, I recommend (if you can’t find correct size screws) drilling 3mm holes in it and using 3mm screws with nuts as spacers to hold it in. Fan is supposed to be held in with friction, although the tabs might be fragile and break off easily (I haven’t found better solution 🙁 ). Be aware this model is not “polished” ;). I decided to upload it to serve as a starting point for someone interested in similar design.

Download the files and learn more

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!