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Thread: 3D Printing

  1. #11
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    Re: 3D Printing

    Quote Originally Posted by Captain Starfish  View Original Post
    Starting to play with my new printer. I had a loop failing negative last week and no idea where it was, but wanted to isolate it at least to one lung or something.

    So I made some block-off plugs:





    Don't know if you can make out the crushed hose but they held a decent negative for half an hour. I then opened the DSV to release the pressure and got an unexpected (but understandable) test of the inhale mushroom - the crush on the inhale side wouldn't go away. I ended up having to pull that hose off the DSV and pop the mushroom out to release the vacuum.

    Now, Paul has a good point. When it first came off the printer I could suck air through it just by popping it in my gob and inhaling. Five minutes with a brush and acetone to soften and mush the outside layers together, half an hour to sit and let the acetone evaporate, and it was happy with the light vacuum.

    I wouldn't trust it with a 7 bar fitting. But atmospheric kinda pressure differentials with the right surface treatment? Not too bad. And for the serious pressure stuff there's nothing stopping us from printing a female mould and shooting resin or something into that: solid, strong, etc.
    The block-off plug looks good.

    Send from P5

  2. #12
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    Re: 3D Printing

    I had issues with them so moved onto something else much more recently - works pretty well now.

    http://www.rebreatherworld.com/showt...r-for-an-Inspo

    I was just shocked about how well the stuff held serious pressure.

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