Pennsylvania Firearm Owners Association
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  1. #1
    Join Date
    May 2010
    Location
    Scenery Hill, Pennsylvania
    (Washington County)
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    31
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    Default Important 3D printed parts for 3M respirators

    If you have a 3M full face or half face respirator there are some useful parts out there.

    Note that the MSA and 3M bayonet filter mounts are not comparable as far as I can tell.

    Here is a plug you can use to run your mask with one filter.

    https://www.thingiverse.com/thing:4264069

    This allows you to more easily shoulder a rifle or possibly conserve filters or still function with just one filter if that is all you have for some reason.

    I had someone print this part for me, I installed a 112 viton o-ring, and it is good to go. I plan to coat all exposed surfaces in an epoxy resin to seal the part completely (ideally a food grade resin) because I did not have access to food grade filament. Also I do not trust that a 3D printed part is inherently air tight. It also isnít easy to disinfect due to the porosity.

    Next up is a 3M bayonet to 40mm NATO adapter that allows you to use an NBC filter on a 3M respirator.

    https://www.thingiverse.com/thing:4216471

    I will also be treating this part with a resin outer coating.

    If you know someone with a 3D printer this is an economical route to upgrade a 3M respirator you have for more than just home improvement use, as opposed to buying a quality NBC mask. I have not found anything yet to suggest the 3M respirator itself is not suitable for NBC use but I am still researching. Given current price gouging and shortages it may be an only option.
    Last edited by JoshIronshaft; April 8th, 2020 at 10:40 AM.

  2. #2
    Join Date
    May 2006
    Location
    127.0.0.1, Pennsylvania
    (Lancaster County)
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    Default Re: Important 3D printed parts for 3M respirators

    I wonder how long it'll be until 3M files a takedown notice for violating their patents. The company that was printing respirator parts in Italy was sued by the patent holder for that part.
    Rules are written in the stone,
    Break the rules and you get no bones,
    all you get is ridicule, laughter,
    and a trip to the house of pain.

  3. #3
    Join Date
    Apr 2006
    Location
    Pennsylvania
    (Allegheny County)
    Posts
    105
    Rep Power
    3340349

    Default Re: Important 3D printed parts for 3M respirators

    Josh, we have 3 printers at out Makerspace in Mt Pleasant if you need anything printed. Would you mind posting this on our FB?

  4. #4
    Join Date
    Dec 2017
    Location
    Leechburg, Pennsylvania
    (Westmoreland County)
    Posts
    40
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    0

    Default Re: Important 3D printed parts for 3M respirators

    Got them before what streaker said happens lol

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