Mk8 Extruder Blower Fan Mount and Duct(s)

thingiverse

I purchased this fan (https://www.amazon.com/gp/product/B07KDQDVC2/ref=ppx_yo_dt_b_asin_title_o03_s01?ie=UTF8&psc=1) hoping it would perfectly match my printer. However, I quickly realized that it's quite big! None of the brackets and ducts I came across were a suitable fit, so I had to design my own custom solution. Since I have a unique extruder mount, I can't guarantee that this will work for everyone. Use your own judgment. This setup is compatible with a Mk8 direct drive extruder. The front bracket attaches to the stepper motor using 2x 3.5mm diameter screws (my length is 65mm, but you might get away with as short as 50mm) threaded into the rear bracket. The fan mounts to the front bracket via 3mm diameter by 32mm long screws and wingnuts (you could also use zipties). Finally, your chosen duct will attach to the slot under the bracket and is secured with a 3mm bolt (or a ziptie). The front bracket should be printed with supports all over. The ducts should be printed standing upright with the fan inlet facing straight up, using supports only on the bed plate. There are two different duct designs included, and more might be released in the future. If you decide to print this design, please share your results!