40mm Desktop Fan Holder

Simple fan holder for 40mm fans. Print 2 pieces, one for each side, and attach using M3 screws and nuts. May be able to use flexible silicone fan mounts like these:

https://www.amazon.com/Silicone-Rubber-Cooling-Mounts-Anti-Vibration/dp/B00MPEBVRA/ref=sr_1_8?s=electronics&ie=UTF8&qid=1529346163&sr=1-8&keywords=silicone+fan+mounts