Flashforge Adventurer 3 - Fan Adapter (Noctua 40mm)

thingiverse

I really like the Flashforge Adventure 3 but the fans are extremely loud. So I replaced the mainboard and case fan with two ultra-quiet 40 mm Noctua fans, it works great but the extruder fan is also extremely loud. So I designed and printed an adapter to install another 40 mm Noctua fan. It prints in three parts so it won't need any kind of support structure. The printed parts fit right into the place of the old fan, so you don't need to modify the original extruder case. Link to the fan I used (it should probably work with other 40 mm fans too): https://noctua.at/de/nf-a4x10-flx The original fan used 24v so you NEED TO STEP DOWN THE VOLTAGE, otherwise you will destroy the Noctua fan. Therefore I used a small step-down module, the module prevents the 500 mA the fan used: "R-78W12-05 DC/DC-Wandler R78W, 12 V, 500 mA, SIL-3, Single" https://www.reichelt.de/dc-dc-wandler-r78w-12-v-500-ma-sil-3-single-r-78w12-05-p177271.html?r=1 You don't need to print the cover, but it looks nicer. I printed all the parts with Polymer PLA, but eventually ABS works better. --- Yes ABS works better... I printed a 7 hour long ABS project and the PLA "Fake Fan" gets loose due to high temperature over a long period of time. The printer is now much more quiet, the cooling is similar (if not better) in comparison to the old fan, and I'm very happy with the result. Hope this is helpful for you too. Have fun and happy printing!