I Build It Scrap Bin | My Homemade Air Cleaner Blew Up! Oh The Humanity! @IBuildItScrapBin | Uploaded October 2020 | Updated October 2024, 1 day ago.
I show this impeller in this older video: youtube.com/watch?v=PtqYQ8P5M8k
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Can't recall when I built the impeller - maybe 4 years ago. Used it for quite a long time, more than 2 years, actually, before it self destructed.
To rebuild I'd use good quality plywood and add an upper ring on top of the vanes. That would add a lot of strength and probably last a lifetime.

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