Topic: 3D print - CPU fan duct
I've made another 3D printable object for my Novena. It is a fan duct that mounts beside the CPU (over the SD card holder) and blows air through the CPU heat sink. It is on thingverse: http://www.thingiverse.com/thing:763391
In order for this to work I had to rotate my heat sink 90 degrees, but found removing the heatsink was easy with a firm twist. I only had a 25x25x10mm fan on hand, which I don't think will fit into a Novena case, so I've ordered a 25mmx25mmx6.9mm fan (Digikey part: 259-1552-ND): http://www.digikey.ca/product-detail/en … ND/2757801 I'll update the picture once that fan is installed.
The print is two objects (layers) which together with the fan are all glued together, it then screws down to the appropriate holes around the CPU, and includes some tabs to help hold the heatsink in place.
This setup is certainly not silent, so you will likely only want to run it when you are doing CPU intensive jobs. Maybe it could be setup to automatically come on when the CPU reaches a set temperature. Figuring out where to hook it up, and how to control it will be the next step.
EDIT: April 9, Changed the design to combine the middle and top layers into one object. Printed the new object in a different colour so the pictures show it better. Please note the fan is glued to the duct, screws would make it taller, and would also interfere with the SD slot below.