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Re: [PSUBS-MAILIST] Underwater tent...
You're right. Mistakes made serve a role as lessons as
much as successes are. Let me think about this. It's
been a while since I had even thought about it. I was
surprised I recalled the few details about the tent at all!
Actually, one of the first 3 still has merit, it was just too
small and even the 4th tent I thought was a bit tight.
Movin' to Oregon?
--Steve
On Tue, 20 Apr 2004 10:40:19 -0700 (PDT) Warren Greenway
<opensourcesub@yahoo.com> writes:
> 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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