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Comment on Making a 3d-printed Underwater Dive Helmet With A Floating Air Supply

First thought was nope nope nope to diy diving helmet, but looks like it would be quick to remove so not too bad. Feels way overengineered if you just wanted to sit in your pool though.

I know snorkels get into problems with depth as your lungs can’t inhale against the pressure. But I am curious how deep that would get you. The dead air in the snorkel is another issue but you can solve that easily with some valves or just exhaling through your nose. Bit impractical to have a very long rigid snorkel but a tube attached to a float could work. Just not sure what the depth limit would be before you can’t fill your lungs anymore. 1m? 5m?

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ProdigalFrog@slrpnk.net ⁨1⁩ ⁨day⁩ ago
His helmet is essentially a diving bell helmet with a pressurized feed of air from an air compressor, so the lungs don’t have to overcome breathing through a snorkel. He plans to use it in shallow areas around Florida, he was only testing it in his pool.

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- phoenixz@lemmy.ca ⁨1⁩ ⁨day⁩ ago
  Though this is awesome and cool, but I feel like we’re waiting for the first “I have no clue about physics or what I’m doing” ending up dead
  
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  - yggstyle@lemmy.world ⁨5⁩ ⁨hours⁩ ago
    Considering the other content he’s produced I’d say this guy at least understands pressure reasonably well. The crab reference is a nod to the scary shit pressure can do to … Living things. (There’s some really nsfl shit out there on the topic.)
    
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  - Korhaka@sopuli.xyz ⁨15⁩ ⁨hours⁩ ago
    Should be ok as it isn’t going that deep anyway. If it fails you get out and surface.
    
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    phoenixz@lemmy.ca ⁨8⁩ ⁨hours⁩ ago
    Oh I know, and I’m not worried about the guy trying this in his pool
    
    I’m worried about the idiot who thinks this too will work for a 30 meter dive, because there is always THAT guy who knows it all
    
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Sphks@jlai.lu ⁨16⁩ ⁨hours⁩ ago
My concern would be about lungs overpressure when going to the surface (and ears overpressure too, when going down/up, but less deadly).

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- Korhaka@sopuli.xyz ⁨15⁩ ⁨hours⁩ ago
  Yeah, it’s adding some risks of diving without many of the safety mechanisms or training.
  
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