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Re: [PSUBS-MAILIST] Community Design Project
Comrades,
I think this is a good idea. It would be good if everyone became knowledgeable in all the various systems that make up the sub rather than just in their own field.
Brian
----- Original Message -----
From: "Adam Lawrence" <adteleka@vzavenue.net>
To: <personal_submersibles@psubs.org>
Sent: Sunday, December 05, 2004 3:34 PM
Subject: [PSUBS-MAILIST] Community Design Project
> Comrades,
>
> I am not too keen on the idea of building a sub by committee, but even if
> the final results are only ever on paper, it may be a good way of
> systematically discussing each aspect of a sub and thus help expose everyone
> to the process of building their own. I would think, (maybe someone already
> did this or suggested it) the way to begin this would be to make a simple
> outline, then exhaust the discussion on each topic before discussing the
> next.
>
> In my opinion, it may be helpful to use a current design as sort of a
> standard or reference. The Kittridge design, obviously, is proven and
> dependable, but it is dated. Why not take the Kittredge sub and improve it?
> Use it as the basis for discussion and walk though each aspect of its design
> and improve it. The hull may be overbuilt and thus we may be able to make it
> lighter, etc. Or we may want to minimize the number of holes punched thru
> the hull for ballast and what not. Several people on here have mentioned
> that a lot of the components called out in the design are no longer
> avaliable or are from the stone age. Let's find replacements. Or maybe we
> discover that an aspect to his design is still better than any we could come
> up with.
>
> The idea would be to have a fully engineered and ready to be built sub, all
> you need is money and a telephone.
>
> One more thought, don't divide people up so that this person is responsible
> for this, or that person is responsible for that..... have a list of names
> of everyone who is active on this mailing list (who has posted) and hear
> each persons thoughts and don't leave any questions unanswered. Each person
> will be responsible to contribute an email composed of their thoughts before
> discussion will continue. Using the K-sub as a reference, the discussion
> will be focused, minimizing the rabbit trails and "only in theory" ideas.
>
> If you start with the hull, the objective may be to have everyone submit the
> redesigned print to their local fabricator for a quote. This will give
> everyone actual interaction with vendors which would educate us about their
> capablities and our own.
>
> This idea would require that everyone interested has to purchase a set of
> Kittridge plans. We can then transform it into the 2005 (Or 20.. something)
> model. But if we fail to complete it, we will at least have a set of plans
> that do work and have that to show for our efforts.
>
> In the meantime everyone can continue designing their own personal sub but
> maybe learn and contribute a few things to an OSS (or whatever) community
> design project and no top secret ideas will be compromised.
>
> Any one onboard with this approach??
>
> Adam
>
>
>
>
>
>
> ----- Original Message -----
> From: "Warren Greenway" <opensourcesub@yahoo.com>
> To: <personal_submersibles@psubs.org>
> Sent: Sunday, December 05, 2004 11:37 AM
> Subject: Re: [PSUBS-MAILIST] [Fwd: take some time and view my web sites...]
>
>
> > By "a monkey could make it", I meant "make", not
> > design. LOL! Here is the trick, I haven't designed a
> > motor controller yet, since I need to know more about
> > what it will need to do. Also, there are quite a few
> > designs out there. The book TTL cookbook is a mujst,
> > and has schematic to build simple PWM timers, all you
> > need to do is add FETS. I actually have a pretty good
> > PWM design I have used that was produced by a friend
> > who is a professional EE. I will dig it up, scan, and
> > post it.
> > No, I don't think you are mentally challenged! You
> > just need a couple more books, and you'll be building
> > circuits with the best!
> > One problem that I have is that I am accustomed to
> > designing circuits that require a PCB, which is a
> > whole different ball of wax. The PCB would be great,
> > but then we would have to organize the purchase of 50
> > or a 100 at a time and how to distribute them, etc. It
> > may be better to try and change gears a bit and select
> > components that will allow a "perf-board" approach.
> >
> > One final thing, I want to share a superb parts source
> > with you PSUBBERS www.goldmine-elec.com
> > Get their catalog! They sell motors, electronics, and
> > other usefull goodies at dirt-cheap prices!
> >
> > Warren.
> >
> > --- "Dan H." <jmachine@adelphia.net> wrote:
> >
> >> Warren,
> >> I was born in the year of...... well let's just say,
> >> a long time ago, and I
> >> know I'm not a monkey either. I have what it took
> >> to build "Persistence"
> >> and have some old electronic experience also, but
> >> still wouldn't know how to
> >> build the speed controller you're talking about.
> >>
> >> Please keep in mind, we're not all from the same
> >> mold. It would be more
> >> useful to me, and probably many others on the list,
> >> if your postings did
> >> more describing and less assuming. For instance, I
> >> know your planning a
> >> sub, that's obvious, but I still don't know the
> >> exact meaning of OSS. I do
> >> happen to know what a 555 timer is but how many
> >> others do, I'm not sure. I
> >> also know what caps are. They are used to smooth
> >> out electrical pulses,
> >> used to block off the ends of pipes, and what I used
> >> to put in my hand gun
> >> when I donned my cowboy hat and ran around the back
> >> yard many years back. I
> >> know I'm exaggerating here but only trying to make a
> >> point.
> >>
> >> You are a skilled person and I know I can learn
> >> things from you. Please try
> >> to post in full descriptions without assumptions and
> >> use terms instead of "
> >> alphabet soup," at least the first few times you
> >> post about something so we
> >> can get up to speed.
> >>
> >> About a speed controller, I for one would be
> >> grateful if you'd draw up
> >> schematics for a few that the average guy can build
> >> and post them, in
> >> particular, one for 36volts @ 100 amps for forward
> >> and reverse..
> >>
> >> Sorry if I sound mentally challenged to you.
> >> Dan H.
> >> ----- Original Message -----
> >> From: "Rick and Marcia" <empiricus@telus.net>
> >> To: <personal_submersibles@psubs.org>
> >> Sent: Sunday, December 05, 2004 3:19 AM
> >> Subject: Re: [PSUBS-MAILIST] [Fwd: take some time
> >> and view my web sites...]
> >>
> >>
> >> > Warren - I was born in the year of the monkey (per
> >> your remark below) but
> >> I
> >> > still have some questions!!!
> >> >
> >> > If I read your email correctly, it's possible to
> >> build a motor speed
> >> control
> >> > for under $10.
> >> >
> >> > I have a joy stick (USB compatible) that I'm
> >> thinking of hooking up
> >> > mechanically to some pots for static maneuvering
> >> (sidle, pitch, yaw,
> >> heave).
> >> > Would I be able to use the USB function without
> >> having to rely on
> >> software?
> >> > Or am I better off to just cut the USB cord and go
> >> with my original idea
> >> of
> >> > a mechanical connection?
> >> >
> >> > Why the 555 timer? Caps? FET? PWM? Vas ist?
> >> >
> >> > I'm thinking of using simple 12V bilge pumps to
> >> generate water jets for
> >> > static thrust but they're simple on/off's.
> >> Variable speed controls on the
> >> > pumps would be nice if it's simple enough to do.
> >> >
> >> > Circuit diagrams?
> >> >
> >> > Rick Lucertini
> >> > Vancouver, Canada
> >> >
> >> >
> >> >
> >> >
> >> > ----- Original Message -----
> >> > From: "Warren Greenway" <opensourcesub@yahoo.com>
> >> >
> >> > Subject: Re: [PSUBS-MAILIST] [Fwd: take some time
> >> and view my web
> >> sites...]
> >> >
> >> >
> >> > > Thanks for some real good feedback. I would like
> >> to
> >> > > point out, though, that by fly-by-wire I meant
> >> using
> >> > > the electric drive motors directly. If it is
> >> > > all-electric then you can upgrade from switches
> >> to PWM
> >> > > via potentiometer, to digital, as you see fit or
> >> can
> >> > > afford. For instance, you can use a simple 555
> >> timer
> >> > > IC with a potentiometer a couple of caps and a
> >> FET and
> >> > > get a PWM with dial-a-speed ability for under
> >> $10.
> >> > > Cheap upgrade, reliable, can be built by a
> >> monkey, but
> >> > > it has to be all-electric for this to be viable.
> >> So,
> >> > > that is all I meant.
> >> >
> >> >
> >> >
> >> >
> >> >
> >>
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