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pmontra
on Feb 11, 2021
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Dyson air purifier outperformed by cheap DIY box f...
Serendipity happens: I was looking at a number of videos about DIY Dyson fans after I learned that bladeless fans exist. Then this post on HN.
Examples
https://youtu.be/vyJ4wA-3dnY
https://youtu.be/sFRXkH2XjsU
ortusdux
on Feb 11, 2021
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They 3d print well if you have a good printer. I've seen designs that use standard size computer fans, which make them cheap and easy.
throwaway180118
on Feb 11, 2021
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I wonder if the porous surface of 3D printed materials affects the airflow
Normal_gaussian
on Feb 12, 2021
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You can coat them - and should, otherwise dust gets lodged in and its a PITA.
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https://youtu.be/vyJ4wA-3dnY
https://youtu.be/sFRXkH2XjsU