Cr-10 Dual 120mm fan & fan controller bottom mount

thingiverse

I added a hole for a low-cost 3.5" fan controller to conceal beneath the enclosure. One of these https://imgur.com/a/hFie9iV can be used, but you'll need to remove the plastic covering first to expose just the knobs and circuit board. Some adjustable legs were added to give it a bit more height as well. By doing so, I made it possible to utilize cheap fans that were lying around while still maintaining a quiet environment.