CPU/board fan silencer (Ender 3)

prusaprinters

<p>I have combined three ideas together:</p><ul><li>air duct goes to the back (<a href="https://www.thingiverse.com/thing:3991193">https://www.thingiverse.com/thing:3991193</a>)</li><li>reduce the noise with shock of the air waves in the inner fins (rungs) round holes (<a href="https://www.thingiverse.com/thing:4251317">https://www.thingiverse.com/thing:4251317</a>)</li><li>bed level reminder on top (<a href="https://www.thingiverse.com/thing:3505548">https://www.thingiverse.com/thing:3505548</a>)<br>Noise is directed to the back of the printer - I measured noise reduction about 6 db!</li></ul><p>Basic version has length 10 cm, extended version 12 cm.</p><p>I just used black marker to highlight the text.</p><p>Check also my fan silencer for power supply unit: <a href="https://www.prusaprinters.org/prints/44686-power-supply-psu-fan-silencer-ender-3">https://www.prusaprinters.org/prints/44686-power-supply-psu-fan-silencer-ender-3</a></p><p>Please share your makes and send me your thoughts about this thing!</p><h3>Print instructions</h3><p>Infill: 15%<br>Support: No<br>Enable Bridge Settings: Yes (Cura - Experimental)</p>