Hi Rick,
Using those left over SS plates is a good plan. Phil recently mentioned he does that as well. They don't give away the thick SS plate any more. ;)' I've change my conning tower design because of the new SS plate pricing. I've got a couple of ideas of how I can TIG weld in some SS sleeves and/or threaded blind sleeves to attach the SS tension rods or bolted on the rings, to hold the thick acrylic cylinder in position. Then ease the corners of the seating groove for the acrylic cylinder, and use a soft gasket to seal the parts together. This way I can just use steel plate conning tower seating flanges.
Do you have any pictures of the SAT system thru hulls? They would be interesting to take a look at.
I just found some more pictures of the S201 interior attachment means for there plate thru hulls. I can now see that they used three bolts to hold the outer SS plate in place with a SS ring inside, instead of just two bolts. This if more like what I would expect from Paul. He also uses just three light weight attachment points on his hatches.
I also found some pictures of the plate thru hull design used on the Alicia submarine. They are mounted on the top aft end of the tube section of the hull, instead of the heads, and so they are a bit different. They don't have the nice angle on the outside surface as those on the S201. He installed a number of basic individual thru hulls on Alicia's rear head as well. But he didn't do that on the S201's rear head. He instead opted to use four large plate thru hulls, of the same size and configuration as the ones on the front head. This makes manufacturing and installing the parts easier as well. This I feel shows the fast evolution of his designs.
Are you wanting to make the total outer SS plate diameter 6", or the ID of the welded in thru hull 6"? If you have total outer SS plate size of 6", and you have say a 4" ID of the welded in thru hull, I would think it wouldn't give you enough room to fit in 8 1/2" holes, and all the rest.
Regards,
Szybowski
From: landnsea1@hawaiiantel.net
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] Large Plate Multi Thru Hull Options
Date: Thu, 22 Jan 2009 14:12:28 -1000
Hi Brent
I was hoping to use the ss drop I have left over from
cutting the sealing ring for the hatch on my K-350 if possible and it's 5/8"
thick. I will need 8 apertures in it for four functions for my mechanical arm
but not sure of the hole size yet until I can determine flow and lifting
requirements. I am guessing approx 1/2" but may be wrong. I would also like to
keep it at no more than 6" diameter if possible for obvious reasons. I went back
and looked at some pictures of some Sat systems I used to live and work in
and all there penetrators seem to go threw a removable blind flange.
Rick P.
----- Original Message -----
Sent: Wednesday, January 21, 2009 6:20
PM
Subject: [PSUBS-MAILIST] Large Plate
Multi Thru Hull Options
That's a very good question Rick. One that I've been
pondering since yesterday. I was planning on having one large one
centered on both the front and rear heads and up a bit. But with the mushroom
vent assembly being in that area, the lines coming out of the plate would get
in the way. So now it looks to me like my best option is to put two
smaller ones towards the sides, much like what was done on the S201 as seen in
these pictures linked below. As you might expect, the larger the plates
unsupported diameter, the thicker it should be. What that is we'll
have to work out. Also we need to consider how many holes of what size
there will be, and where. I was thinking of using a .5" or .75 thick
piece of 316 SS for a plate with a inside unsupported diameter of 6 or 7
inches. I need to guestimate the number and size of items I want to go
thru each plate, and then leave some room for future needs/wants.
Currently I feel I'll need a good amount of thru hull connections for future
pnuematic acturators, sonars, cameras, more lighting, and paint ball guns for
sub tag. May be not the last one. ;)' I know a few
other guys that wished they had added more thru hulls for future unknown
needs/wants.
http://www.msubs.com/Images/Services%20Images/Pressure%20Vessel%20Design/Pressure%20Vessel%20Design%20-%20Main%20Image.jpg
http://www.msubs.com/Images/S201%20Images/S201%20-%201.jpg
http://www.msubs.com/Images/S201%20Images/S201%20-%203.jpg
In
this picture of the interior of the S201 you can see on the center left side,
the way Paul designed the plates to be attached from the inside, with a simple
SS ring plate and two bolts. This way he does not need to drill into the
welded in seating ring, and the ring can be made with a much cheaper steal,
rather then use very thick SS. I'm working up a CAD model to better show this
configuration. I'm not sure if a O-ring or gasket in the SS plate will be the
best option. I'm leaning towards a O-ring configuration.
http://www.msubs.com/Images/S201%20Images/S201%20-%208.jpg
Regards,
Szybowski
From: landnsea1@hawaiiantel.net
To:
personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] The Long Arm
of the Claw
Date: Tue, 20 Jan 2009 16:32:26 -1000
What diameter and thickness ss plate are you going to
use in the front and rear heads?
Rick P.
----- Original Message -----
Sent: Tuesday, January 20, 2009 1:14
PM
Subject: RE: [PSUBS-MAILIST] The Long
Arm of the Claw
The rotary thru hull is rusted
and has male threads on the exterior that are rusting quite
nicely. I'm changing all the thru hulls in the sub to 316 SS couplers,
so while I'm at it I might as well change that one as well, so I can get all
the hull welding out of the way. I'm adding two large SS plate type thru
hulls on both the forward and rear heads for what ever I might want later as
will as current needs. This way I can install and run a pnuematic,
electric, or hydralic arm later.
I just figured out how Paul
Moorhouse attaches his SS plates without any bolt holes in the main hull. So
I'll make a CAD model to show you guys what I thinking will be nice to use
on my sub.
http://cid-5085d10eb6afe47c.skydrive.live.com/self.aspx/Claw%20Removel/SS%20Claw%20Control%20Bar/DSCN7320.JPG
"A wise man
will make more opportunities than he finds." ~ Sir Francis
Bacon
Szybowski
To: personal_submersibles@psubs.org
Subject: Re: [PSUBS-MAILIST] The Long
Arm of the Claw
Date: Mon, 19 Jan 2009 20:43:13 -0500
From:
vbra676539@aol.com
I'd leave the rotary penetrator plugged for when
you can think of something to do with it, and build something more useful
for a manipulator. That's if you can find it under the
snowfield.
Vance
-----Original Message-----
From: Brent
Hartwig <brenthartwig@hotmail.com>
To: PSUBSorg
<personal_submersibles@psubs.org>
Sent: Mon, 19 Jan 2009 6:35
pm
Subject: RE: [PSUBS-MAILIST] The Long Arm of the Claw
Hi Vance, The winter
up here is pretty deep. I went home the other day to shovel snow off
my buildings and Van and it was a four day chore. I had the sub
ready for blasting outside, and then was called away from home to work.
By the time I got back the sub was under 4 plus feet of snow. The
pictures I took are pretty funny. I'll post them in a bit. So the sub
is underwater and in the deep freeze for save keeping. I have been debating for some
time now if I should leave my original claw arm on the sub. It's very
hard and slow to actuate. So at the moment it's used for just a
crash bar, like Alec uses his for. I can make a proper replacement
crash bar, then later add a more functional arm. So it's mostly a matter of
nostalgia at the moment. What would you do in my place. I
take it you could see the pictures right? Jay try this link to the root
for the albums. If that doesn't work then I'll post them on Flicker. I
tried those links when being signed out and being on Windows Explorer
browser and had no trouble. I also tried them on a Mac in Firefox and had no
trouble. The only thing I can see that is different in the link from the
address bar from the ones in my posting is the %20 sign used in place of
spaces that are put in automatically when I copy and past the links.
Perhaps they are causing the trouble if you copy and paste them. I
tried them both by just clicking the links and copying and pasting and they
worked good. The albums are set as public just like I did
before. Hope this works.
Regards,
Szybowski
To: personal_submersibles@psubs.orgSubject:
Re: [PSUBS-MAILIST] The Long Arm of the Claw Date: Mon, 19 Jan 2009
18:52:07 -0500 From: vbra676539@aol.comIt's nice to
know I'm not the only one stuck with bull work. Of course, it was 76 degrees
here today, sunny and a few clouds...breezy. Okay, I can't think of a
complaint. And there's some of you guys who up to your armpits in winter,
and I do mean winter. Vance
-----Original
Message----- From: Brent Hartwig < brenthartwig@hotmail.com> To:
PSUBSorg < personal_submersibles@psubs.org> Sent:
Mon, 19 Jan 2009 5:43 pm Subject: [PSUBS-MAILIST] The Long Arm of the
Claw
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