LACK 120mm fan duct for Noctua

thingiverse

**[UPDATE: October 1, 2020]:** I uploaded a zip-file, which contains the .f3d and .step files for your convenience. Just delete the stl extension from the filename. This is a remix of the 120mm fan duct from moriaty_ (https://www.thingiverse.com/thing:4495123). Credits to him! I use this duct for my Noctua [NF-A12x25 5V PWM](https://amzn.to/3mQE7my), which I temperature control by a [BM280](https://amzn.to/3clrUkT) sensor connected to Octoprint with Enclosure plugin. Here is also my housing I use for the sensor https://www.thingiverse.com/thing:4604006 I took the design and made some adjustments to fit my needs: * Moved the cable slot to the side wall because I have a suspended ceiling in my encloser that covers the wireing of the fan and LEDs. The ceiling is made of 2 layers of foam board (each 5mm). * Added guiding slots on on two walls to ensure proper fit between top and bottom part and avoid slipping and rotation between the parts. * Added three levels/compartments to the top part to insert [carbon filter matts](https://amzn.to/3mCOwlA) (10mm each). As I was unsure how many layers would be necessary the keep up a good air flow but still filtering the air I made 3 compartments. Currently I use two compartments for testing temperature control * **IMPORTANT:** I extruded the inner distance from 50mm to 60mm due to the +10mm of the suspended ceiling. If you want to use my design, then please take this into account. Thanks! * Removed the screw holes from the top part as not needed. The top can easily be removed for changing the filters. * Did some cleanup of the original STL file.