Re: [PSUBS-MAILIST] Underwater tent...

[Warren Greenway <opensourcesub@yahoo.com>]

First, I wouldn't mind knowing about the other 
attempts, which I assume weren't so succesfull. 
(Forewarned is for-armed, you know.) I certainly will
post my progress as soon as I have something to post.
All of my belongings are boxed up right now...Which
makes projects out of the question for the time being.

Warren.
 

--- Steven Mills <cirtemoeg@juno.com> wrote:
> Good thing I didn't write about the first three
> attempts.
> 
> Hopefully, you'll post your ' w.i.p.' on Restorides?
> I'd be
> interested in how it goes.
> 
> --Steve
> 
> 
> On Mon, 19 Apr 2004 10:29:07 -0700 (PDT) Warren
> Greenway
> <opensourcesub@yahoo.com> writes:
> > Yeah, I cracked a smile! Thanks for sharing that!
> I
> > think that my first "manned tent" will be similar
> in
> > dimensions. 
> > 
> > Warren.
> > 
> > --- Steven Mills <cirtemoeg@juno.com> wrote:
> > > Wow, we're talking a long time ago, but here
> goes.
> > > 
> > > First, I'm assuming that the setting and
> morphology
> > > of the pond
> > > aren't significant.
> > > Suffice it to say, , the only problems I
> encountered
> > > were in the
> > > construction,
> > > the materials available to me,  and my own
> > > inexperience and not so
> > > much the dynamics of the pond.
> > > 
> > > My tools were pipe benders, hacksaw, pipe
> threaders,
> > > and the ol'
> > > Sears craftman's tool set [ the old "good" tool
> set
> > > of a time passed ].
> > > The materials were ;  conduit and plumbing
> fittings,
> > >  construction
> > > grade clear visaquene plastic, pitch for
> sealant,
> > > rope, string, small
> > > canvas bags used with sand and gravel for weight
> and
> > > trim, and
> > > homemade pinch clamps to hold plastic to frame
> at
> > > various points
> > > to keep it in place [ without damaging or poking
> > > holes in the plastic.]
> > > Basically, the stock came from a loose
> assortment of
> > > parts from
> > > my granddad's barn.  The base frame was sized
> and
> > > cut from
> > > stock galvinized 1inch diam. conduit, the top
> frame
> > > was sized and
> > > cut from half inch galvinized stock. I rammed
> and
> > > packed the pipe for
> > > the base with sand using rebar and pieces of
> burlap
> > > wadding.
> > > The top frame was left hollow.  I made four
> tents
> > > the last being
> > > successful at 4feet by 6feet base at 3feet in
> > > height. 3 half round
> > > frame members with a longitudinal supporting
> member
> > > and vertical
> > > supports at each end.  Despite its weight it was
> > > slightly positive
> > > bouyant.  So, I added sand filled canvas bags
> lashed
> > > to the bottom
> > > frame. When I needed to replenish the air or
> take it
> > > to surface I simply
> > > unlashed the bags and it would rise slowly with
> a
> > > little help.
> > > It was crude and it did leak, but there was
> always a
> > > good size pocket
> > > of air to enable me to explore a short distance
> and
> > > return for air.
> > > I would say it gave me about 20 minutes under
> before
> > > I had to surface.
> > > I could sit in it, but the plastic would fog up
> a
> > > lot, but a splash of
> > > water
> > > cleared it up. Visaquene is hygroscopic so it
> would
> > > opaque and degrade
> > > out of water while being stored. It was fun
> while it
> > > lasted. It was
> > > destroyed
> > > when my cousins and a few neighbor kids thought
> it
> > > would be fun
> > > playing 'depth charge' with large rocks [ and
> with
> > > me in it !  ]
> > > 
> > > Well, did that help?... or at least  crack a
> smile?
> > > 
> > > Shallow, tidal, and near shore dynamics is a
> > > different story compared
> > > to a pond. You've got your work cut out for you
> > > that's for sure.
> > > 
> > > cheers, --Steve
> > > 
> > > 
> > > On Sun, 18 Apr 2004 21:34:22 -0700 (PDT) Warren
> > > Greenway
> > > <opensourcesub@yahoo.com> writes:
> > > > That is similar to the proposal by Michael
> Savage
> > > > in his book Millenial Project. So, what I want
> to
> > > know
> > > > is this: How large was your electrical conduit
> 
> > > > underwater tent? I'm still very interested in 
> > > > collecting data on swell-induced pressure
> > > variations
> > > > in such a habitat.
> > > > 
> > > > Warren.
> > > > 
> > > > --- Steven Mills <cirtemoeg@juno.com> wrote:
> > > > > ...and, if you feel real ambitious or want
> to
> > > add a
> > > > > split-level
> > > > > to that underwater tent, may I suggest this
> :
> > > > > 
> > > > >
> http://fun.supereva.it/artificialisle/index.html
> > > > > 
> > > > > 
> > > > > Or, perhaps we should all chip in and build
> a
> > > pSubs
> > > > > headquarters
> > > > > and convention center ?
> > > > > 
> > > > > :- )  --Steve
> > > > > 
> > > > > 
> > > > > On Sun, 18 Apr 2004 09:37:53 -0700 (PDT)
> Warren
> > > > > Greenway
> > > > > <opensourcesub@yahoo.com> writes:
> > > > > > Cool! Thanks! One thing about that link
> that
> > > is
> > > > > > interesting is that they are measuring
> PAR. I
> > > told
> > > > > the
> > > > > > company I was working for that underwater
> PAR 
> > > > > > measurments would become important in the
> near
> > > > > future.
> > > > > > They laughed. Hmmm. I designed a PAR
> > > instrument
> > > > > once
> > > > > > before! 
> > > > > > 
> > > > > > Warren.
> > > > > > 
> > > > > > --- Steven Mills <cirtemoeg@juno.com>
> wrote:
> > > > > > > 
> > > > > > > This isn't exactly a tent for habitation
> or
> > > > > > > saturation diving. But it is
> > > > > > > similar to something I built as a 14
> year
> > > old
> > > > > kid
> > > > > > > quite by accident.
> 
=== message truncated ===



	
		
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