Here's yet another fan duct for the Ender 3. The goal of this was to design something simple, clean, and solid that works with the stock fans and hardware and can be printed without supports as long as your printer can handle a 16 mm bridge and 45 degree overhangs.
If you've upgraded or plan to upgrade to a larger 5015 part cooling fan check out my new upgraded design here: https://www.thingiverse.com/thing:4528533
Or also check out my more recent dual 5015 blower duct design: https://www.thingiverse.com/thing:5750189
The V59 file adds a hole behind the fan to access the top mounting screw straight on rather then from the side with a ball end allen wrench as shown in my photos. I haven't bothered to actually print this version myself yet to verify how well it works, since the V52 currently on my machine works fine. So I left the old files here.
Remove the stock Ender 3 fan cover
Pre-install the mounting screws
Attach the duct to the hot end backplate, passing the cable through the slot on the back
Attach the duct to the hot end back plate with the two stock screws
Install the hot end fan passing the fan wires into this pocket
Install the hot end fan with the stock screws.
Install the hot end cable cover
Install the cooling fan with the stock screws
How I Designed This ===================Fusion360 Screen Shot
Video =====Instructional video by www.3dprintscape.com
Category: 3D Printer Accessories
The author marked this model as their own original creation. Imported from Thingiverse.