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Thread: Coronavirus and homemade tools

  1. #91

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    The cat is out of the bag!
    BLUE SHOP cloths. (COSCO has best price)
    Yes, that is what I make mine from.
    For elastics U can use the ones that come from bundling fresh vegies at the supermarket.
    In fact I made masks simply using my office stapler to create the folds.
    Also you should note that the manufactured masks use 3 plys.
    One sheet of shop towel folded will make a 2 ply easily so take 3 sheets of shop towel and cut in half so you get 2 masks from each 3 sheets.

    Since these are 'throw a way' masks the stapler method is more than adequate INMHO
    Main problem is the void around your nose area. I suspect a soft 'clip' or dabbing of hot glue could create a nice 'springy' nose clip.
    A clothes pin works but they are too tight. LOL.

    I got the blue shop rag idea as that is what I use on my shopvac to pick up gyprock dust and that's ultra fine dust!

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    Last edited by piloon; 04-04-2020 at 02:47 PM.

  2. #92
    Jon
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    Do blue shop towels have a strand or fiber orientation or grain? If so, if using multiple layers, would it make sense to alternate the layer orientation 90 degrees? Also, would boiling them have any effect on shrinkage? For reference, note this CDC homemade respiratory mask for bird flu in third world countries. They're made with cotton t-shirts, and they recommend to boil the fabric; also see in the image how they recommend layers of alternating straight and cross grain.


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  3. #93
    Supporting Member IntheGroove's Avatar
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    IntheGroove's Tools
    There are other household items you can use to make a face mask...
    Coronavirus and homemade tools-person-diy-ee-diy.jpeg

  4. #94
    Supporting Member Saltfever's Avatar
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    HANDS-FREE DOOR OPENER:
    Here
    is a way to open your doors without touching the handle. Should be of interest to those with 3d printers or a CNC machine. Free Models can be downloaded to your CAD system. If someone modifies the CAD model for easier manufacturability or to fit a different configuration of a handle, please let us know.
    Last edited by Saltfever; 04-04-2020 at 08:48 PM. Reason: spelling

  5. #95

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    Quote Originally Posted by piloon View Post
    The cat is out of the bag!
    <snipped stuff>

    Main problem is the void around your nose area. I suspect a soft 'clip' or dabbing of hot glue could create a nice 'springy' nose clip.
    A clothes pin works but they are too tight. LOL.
    <snipped stuff>
    have a look at some of the ground filter coffee packages. locally some of the non-Ziploc bags comes with a piece of coated aluminum "flat", that you can use to reseal the bag

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    Jon (04-05-2020)

  7. #96

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    Quote Originally Posted by Jon View Post
    Let's look again at faceshields. Here's a good variety of a few designs.

    MIT is working on various designs for the pandemic. Here's an 0:58 video of their face shield design:



    MIT also has some other coronavirus projects in the mix. You can see them under "active projects" here. Unfortunately, the face shield files "are currently only being provided to professional die cutters". Seems kinda lame.


    I also like this beautiful "facehugger" style of face shield I saw floating around. I think this design image is all that's available right now. No idea if it can be reasonably manufactured:




    In the lowbuck category, we have this one:

    Fullsize image: https://s3-us-west-1.amazonaws.com/h...d_fullsize.jpg




    And some memes. No day would be complete without a coronavirus toilet paper meme. I like the circular groove details on the top of the cake rolls.



    US households with taxpaying citizens under a certain income level will be receiving $1,200 checks per adult, and $500 per child. I think I'd rather that the government gave out food coupons or rent vouchers or some such, so that this money can't be spent irresponsibly. Nevertheless, the irony of this stimulus was obviously not lost on this sinking-boat meme:

    The idea behind the $1200 is to stimulate the economy the whole economy, all facets of the economy.Not all people live without a backup pantry.
    sorta reminds me of the ant & grasshopper IMHO !!!!

  8. #97
    Jon
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    This is a clever method to increase surgical mask (as opposed to N95 mask) filtration efficiency, with the use of three rubber bands. 2:34 video:




    More:

    https://www.fixthemask.com/
    https://imgur.com/gallery/KIw75UR

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    nova_robotics (04-06-2020), Scotsman Hosie (04-17-2020)

  10. #98
    Supporting Member Frank S's Avatar
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    Frank S's Tools
    And in a few months everyone will have bug ears from the rubber bands pulling on their ears
    Never try to tell me it can't be done
    When I have to paint I use http://kbs.justoldtrucks.com/

  11. #99
    Supporting Member NeiljohnUK's Avatar
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    Quote Originally Posted by Frank S View Post
    And in a few months everyone will have bug ears from the rubber bands pulling on their ears
    Regular wearers of 'ear' type surgical masks know the trick of wearing a headband with a button each side to hook the mask onto instead of their ears, surgical masks are an exhalation filter to catch the wearers breath.

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  13. #100
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    Another solution to the mask strap ear problem.


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    byates (04-10-2020), Scotsman Hosie (04-17-2020), Seedtick (04-10-2020)

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