[CR10] control box 120mm fan holder optimised

thingiverse

*short version* Print the V2 file and one "front feet" to get a good airflow in your control box and remove a lot of noise. One fan or two, one is ok for me. Ah, also, don't forget : your warranty will be lost by doing this mod. *long one* Project of one night... I had already put some 60mm noctua fans in my control box (to replace the 50 and 40mm), cut all the crap in front of the fans and put the power supply fan in intake. But it seems that the power supply still need to put the bottom fan full power 60% of the time. Which I don't like because of the obvious noise it makes to say "your fans are useless as fuck" Then I found a Corsair PC power supply in a garbage, (she wasn't working but was totally new and without dust !) took the fan, played around with it, and saw that it was VERY powerful (12V 330mA). 2h later I was heading to my favorite website for 3D printer parts, searching for a good fan holder, but, no one was interesting to me (quick and easy to print, simple, with a good airflow) As a student, I have a free SolidWorks licence so I made my holder ! **** END OF THE STORY (interresting things under) **** features : Quick and easy print (<4H for me), airflow is as good as possible (area of a 120mm fan : 11 300mm², area of the clearances under the holder : 8000mm² do the conclusion you want.) I didn't had time to test it, it is printed, but not tested. (EDIT : now tested, read below) The idea : Print two, remove the metal plates of the bottom (power supply + bottom of the control box), two option possible : - one fan -> rear : intakes - two fans -> rear : intakes, front : exhaust Remove all fans in the box ! I would plug the front fan in the power supply (to power it only if needed) To cover the hole betwin the two holders, two option : electrical tape (not recommanded) or aluminium foil covered with kapton tape. Non flammable and electrically non conductive. Easy to cut. I love this combo. A good addon could be to glue some pieces of rubber under the feets, to dampen some vibration and add some grip. From the inner tube of a bike ? Might be a good idea. SolidWorks file provided ! (some holes were covered because no need and ugly to print because of the high angle) EDIT : the holes where ugly but the print time was faster, I will make a V2 where I will put more holes in the walls to speed up the print, Actually it is a 5h30 print for me (30mm/s and 45mm/s infill) sorry ! EDIT2 : Tested ! I put a Akasa fan I had laying around, and the airflow was absolutly amazing, but a bit loud. I put only the Akasa fan, one feet only, and some old prints to support the front of the control box. (One fan = rear & intake) I've replaced it with an old but not used Noctua NF S12-800 (which stand for 12cm, 800rpm at 12V). I was a bit worried about the airflow because this fan do not push a lot of air... But now it is in place, and the airflow seems to be just enough. 30min of printing at 208°C and 60°C for the bed didn't turn on the power supply fan (I let it near the power supply just in case... not screwed because all the bottom plates are removed) The fan produces 8 dB as the manual said. I can hear the power supply switching power so... Yes it is REALLY quiet and I can't feel any hot spots on the control box. (photo added, the version you can download is a bit better, I still need to make a "quick print" version) I will also add 2 simple feet if you only want to put one fan, to support the other end of the ctrl box LAST EDIT : new files where added ! Feet and V2 "quick print" with an improved airflow. You can remove more material if you want, but my work on this is done. Good luck !