Voron parametric fan grill swirl noise reduction design.
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Voron parametric fan grill swirl noise reduction design.
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Voron fan grill swirl noise reduction design.
inspired by this paper https://www.pugetsystems.com/labs/articles/
and the High-efficiency Noctua 120mm fan gril
Default step and fusion file are meant for the 60mm voron 2.4 electronics bay and exhaust fans.
but the fusion360 model is parametric and you should be able to adapt to different fan sizes (number of swirls, thickeness...etc), in the change parameter menu.
Noise measurements (average of 3x30s measure with a phone app):
- Fans off : 60dB
- Swirl grill => 61dB
- Voron grill => 64dB
Note1: Measurements done with the DocEng fans which came with my formbotkit.
On the picture, I switched to Noctua fans and the noise difference due to the grill
is not measurable ( noctua fans are maybe less powerfull but very quiet).
Print settings:
- If used outside of the printing chamber then any material like PLA, PETG and ABS will do.
- I used voron default printing profile anyway : 4-5 perimeters, 40% infill.