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Re: [PSUBS-MAILIST] battery acid? & battery issue follow up
Yes, if there wasn't some form of mixing mechanism in
the lines and/or tanks. I honestly have never tried
it, but I have a bucket of old gear lube, and the
metal
particles in it stay suspended for quite some time.
Warren.
--- Pierre Poulin <pipo305@hotmail.com> wrote:
> would the iron deposit after some time?
>
> Pierre
>
>
> >From: Warren Greenway <opensourcesub@yahoo.com>
> >Reply-To: personal_submersibles@psubs.org
> >To: personal_submersibles@psubs.org
> >Subject: Re: [PSUBS-MAILIST] battery acid? &
> battery issue follow up
> >Date: Wed, 18 Feb 2004 08:35:49 -0800 (PST)
> >
> >Try mixing 95W gear lube and iron fillings (course
> >"powder"). I think you will find that it is
> non-toxic,
> >
> >cheap, and pumpable. (Though not as heavy as
> mercury)
> >
> >Warren.
> >
> >--- Brian Cox <ojaibees@ojai.net> wrote:
> > > I don't see any problem with using a mercury
> trim
> > > system that's what I was planning to do
> > >
> > > Briian Cox
> > > ----- Original Message -----
> > > From: "Coalbunny" <coalbunny@vcn.com>
> > > To: <personal_submersibles@psubs.org>
> > > Sent: Tuesday, February 17, 2004 2:49 AM
> > > Subject: Re: [PSUBS-MAILIST] battery acid? &
> battery
> > > issue follow up
> > >
> > >
> > > > Shawn, that is something that I have wondered
> > > about- will the ballast
> > > > shift? I have read how a number of scientific
> > > units used lead or steel
> > > > shot. Is there anything that prohibits that
> being
> > > used? IIRC at one
> > > > time even mercury was used. Of course we know
> the
> > > environmental
> > > > implications from that. One thing I thought
> of
> > > using that should be
> > > > cost effective and would be environmentally
> > > friendly is the use of sand
> > > > or gravel. But since I have no real unit to
> use
> > > that ballast method
> > > > with, I have no idea if it'll work.
> > > > Carl
> > > >
> > > >
> > > > NeophyteSG@aol.com wrote:
> > > > > In a message dated 2/16/04 5:47:29 AM
> Pacific
> > > Standard Time,
> > > > > Asmyth@changepoint.com writes:
> > > > >
> > > > > Because Solo is intended as a "flying"
> sub,
> > > it's designed to have a
> > > > > very small self-righting moment. [snip]
> If
> > > Solo had conventional
> > > > > stability, she could never roll or fly
> > > inverted.
> > > > >
> > > > > Totally understand. My design is facing
> similar
> > > constraints except that
> > > > > all my nonessentials are fared external to
> the
> > > pressure hull which, Sgt.
> > > > > Pepper-ish, is much smaller than yours
> appears
> > > to be. In my case, I'm
> > > > > juggling axiometric placement of everything
> in
> > > the horizontal and
> > > > > vertical planes through the hull's
> longitudinal
> > > axis, leaving the drop
> > > > > weight(s) placement until near the end to
> > > essentially force the righting
> > > > > moment equations to balance. I also liked
> the
> > > idea of essentially being
> > > > > able to use just about everything except the
> > > pressure hull as a drop
> > > > > weight should the absolute need arise.
> > > > >
> > > > > What gave me a worse headache was trying to
> > > figure out a functional
> > > > > ballast system for a craft which will
> > > hypothetically have six degrees of
> > > > > freedom, won't "slosh" around (changing the
> > > center of buoyancy), and
> > > > > will work no matter what the orientation of
> the
> > > craft ... including
> > > > > upside down.
> > > > >
> > > > > Given the batteries are snug against the
> > > hull "ceiling", I can't
> > > > > reach the lugs to connect the cables
> unless
> > > they are upside down.
> > > > > Plus, I don't want the lugs shorting out
> > > against the hull. If they
> > > > > cannot go upside down, I'll probably
> have to
> > > lower everything by
> > > > > about 3". Plus, all the cables will now
> be a
> > > few inches too short.
> > > > >
> > > > > Aside from simply not having the room,
> you're
> > > making me glad that I
> > > > > chose to mount all but the two emergency
> reserve
> > > batteries outboard ...
> > > > > not meaning to take pleasure from your pain.
> :)
> > > > >
> > > > >
> > > > > In a message dated 2/16/04 7:00:24 AM
> Pacific
> > > Standard Time,
> > > > > Asmyth@changepoint.com writes:
> > > > >
> > > > > The Lifelines can be used in any
> position,
> > > but only charged upright.
> > > > > The Optimas can be used or charged in
> any
> > > position at all.
> > > > > Unfortunately, I can't do a straight
> > > replacement because Optima
> > > > > doesn't make a battery as large as the
> ones
> > > I'm using. So it looks
> > > > > like I need to modify my hardware and
> > > calculations to turn them
> > > > > right side up
> > > > >
> > > > > FWIW, possible KISS solution: Incorporate a
> > > pivot and latch into the
> > > > > mounting hardware whereby you can drop them
> down
> > > into an upright
> > > > > position for charging -- when you won't be
> > > occupying that space -- then
> > > > > latch them back upside down and against the
> hull
> > > during dives. If the
> > > > > current cabling reaches the lugs in their
> upside
> > > down position, you
> > > > > won't even have to lengthen them because
> they'll
> > > just need to rotate
> > > > > 180-degrees. Make sense?
> > > > >
> > > > > Warm Regards
> > > > > Shawn
> > > > >
> > > > >
> > > > > *****
> > > > >
> > > > > "Call nothing thy own except thy soul.
> > > > > Love not what thou art, but only what thou
> may
> > > become.
> > > > > Do not pursue pleasure, for thou may have
> the
> > > misfortune to overtake it...
> > > > > Live in the vision of that one for whom
> great
> > > deeds are done ..."
> > > > >
> > > > > Man of LaMancha, D. Wasserman
> > > >
> > > > --
> > > > Spotted Owl...it's what's for dinner.
> > > >
> > > >
> > >
> >
> >
> >__________________________________
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