Re: [PSUBS-MAILIST] Stepped sail design .....opinions?

James,

Ugly as a dogs butt perhaps, but my dog Harley likes it. ; )' That hull was just for fun. You win some and loose the rest. In regards to a human model, I need to do the same thing. Carsten some time back, posted some human profiles on the Moki picture exchange I was planning to use as a base to model mine in Solidworks. Obviously Joe has a human model, but so far we have not figured out how to exchange IGES or STEP files that work. Perhaps we should try again Joe. Will your CAD program Inventor except IGES or STEP files. STL files should also work, but they don't give you as smooth of models as IGES or STEP files. I think you said you have Solidworks, so why would you want to use Inventor? I'll be interesting in seeing your model of the swing able half ladder.

Regards,

Brent

From: "Lil Brother LLC" <lil_brother_llc@bellsouth.net>
Reply-To: personal_submersibles@psubs.org
To: <personal_submersibles@psubs.org>
Subject: Re: [PSUBS-MAILIST] Stepped sail design .....opinions?
Date: Mon, 23 Jul 2007 13:24:45 -0500

Brent,

Yep...that is the basic idea....but I hate the lines of your sub. It's about as ugly as a dogs butt. (Sorry.....couldn't resist) I'm a more formal lines type of person. Not to say new shapes and ideas are not viable or possible, I just like the way the tubular shape of a sub looks.

I've been working on the design some, but haven't had a chance to put anything on the web (mainly because I'm not finished yet).

I know what I could really use....a model of a person for inventor. I need the representation (movable) to make sure the sub scales out to the right size.

With the Stepped sail design.....it is important to know the average shoulder width.......so the person in the top dome can actually move.

I did decide the pilot (captain, driver, etc.) will be located in the lower dome......it would be far to hard to position instrument and controls in the top dome.

Also I'm working on a boarding idea for the upper dome......like a swingable half ladder. when pressure is put on it.....it locks in position, then the ladder has spring indents for other positions when no pressure is on it.

I'm actually trying to incorporate all the necessary piping and bulkheads ( and such) as I go. I do not have an extensive library......so some of the items will be just blocks.

James Long
Owner/Designer
Lil Brother LLC (Instrument Division)

----- Original Message -----

From: Brent Hartwig

To: personal_submersibles@psubs.org

Sent: Monday, July 23, 2007 3:06 AM

Subject: RE: [PSUBS-MAILIST] Stepped sail design .....opinions?

Greetings James,

It can and has been done. I would add some thickness to the flange at the angle joint. Here is the model I just finished of a stepped sail basicly like the one you showed use. I was just going to build the sail 3D model, but I got carried away.

http://www.frappr.com/?a=viewphoto&id=2628470&pid=7095469

Regards,

Brent Hartwig

                "Consistency is the refuge of the unimaginative. "

                                                             - - Oscar Wilde

From:  "Lil Brother LLC" <lil_brother_llc@bellsouth.net>
Reply-To:  personal_submersibles@psubs.org
To:  <personal_submersibles@psubs.org>
Subject:  [PSUBS-MAILIST] Stepped sail design .....opinions?
Date:  Sun, 22 Jul 2007 17:15:44 -0500
>So Joe Perkel and I have been having a thorough discussion.....which I've
>enjoyed the exchange.
>
>I have some questions about the image that is attached. (Sorry....hated to
>kill the bandwidth, but didn't know how to le the image be accessible.)
>
>Does the image have a chance to be successful?
>
>Will the angled mounting of the dome hatches cause any structural weakness
>(other than the acrylic dome itself)?
>
>I know anyone who answers is doing so with the best intentions. I know that
>only real life testing is the only way to know for sure.
>
>My design is only for a depth of 250 ft max.
>
>Also understand.....the drawing is a preliminary......just drawn up to
>discuss the possible flaws of the idea.
>
>James Long
>Owner/Designer
>Lil Brother LLC (Instrument Division)

><< SteppedSailDesign.jpg >>

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