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If the “download all” button is broken, click “13 thing files” and download what you want individually. Alternatively, direct link to good drive download: https://drive.google.com/file/d/1IWXGh0yBYsnstdwCUT37hCQscseagmqg/view?usp=sharing
Youtube filter assembly tutorial at: https://youtu.be/ySOCNycv-aA
I’m a doctor who loves 3D printing. We have a nationwide PPE shortage as a result of COVID19. I’m ready to distribute this optimized design for free for in-house printing in hospitals and elsewhere. My hospital is buying printers and will be expanding fast. You may use these designs and please share with everyone. You may not sell for profit but may accept donations to cover the costs of the supplies.
I’ve calculated average cost per mask+filter to be $1.88
$0.97 PLA + $0.06 3M filter + $0.31 MERV 13 filter + $0.25 glue + $0.29 tourniquet
There are no guarantees about the efficacy of any home made masks. Use at your own risk.
This is a remix of Kvatthro’s thing #4222563. It’s not letting me link to that, sorry. Thank you to that user. I have added reinforcement, fixed the nose gap problems, created multiple sizes, made a smaller filter box, added filter blockers to the base so it can’t slid too far on, and successfully fit tested it with 1 layer of sealed in 3M 1500 filter and 1 layer of pressed in folded ace hardware MERV 13 filter.
Get creative, stay safe. These are okay to use ONLY if you run out of regular masks. These are a last resort, but aim to be a good one.
This article was first featured at https://ift.tt/3ai8fQN on March 25, 2020 at 12:37AM by ctwiles
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