40mm Fan Duct - Silencer Ender 3, no hardware required.

thingiverse

V2: Same as V1, but with added fillets for easy flipping and printing with the opening facing down. This modification eliminates the need for supports, although a brim might still be necessary if bed adhesion becomes an issue. I printed without incident on a clean glass bed using no hairspray or glue, adjusting my speed to 45 mm/s in Cura while setting the base layer speed around 15 mm/s due to the first layer's narrow width. Despite these changes, they have minimal impact on overall print time due to the part's small size. The pictures demonstrate virtually zero cleanup, achieved by setting travel to "not in skin" to prevent stringing inside the bell. Hello, I sought a solution to place on the extruder fan that would increase distance from the blades without compromising airflow. I was pleasantly surprised to find it significantly reduced the fan noise. Additionally, this design is specifically tailored as a press fit into the Ender 3's stock fan, eliminating the need for longer screws. However, some minor sanding may be required on the lugs depending on your printer's accuracy.