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<DIV>Yes, as Vance says we did work up a pneumatic manip for the original ‘Sea
Urchin’ sub. The design criteria was: brute simple, three functions
(extend/retract, swing 90 degrees each side/ jaw open/close) and, above all,
CHEAP!! we used air cylinders, plastic tubing and three-way valves – one for
each function. The valves exhausted back into the sub cabin. The system pressure
was about 200 psi, as I recall, and the manip was operated independently from a
scuba pony tank mounted outside for that purpose. System pressure was kept
at 200 psi over bottom, regardless of depth by the first stage of a scuba
regulator with the spring shimmed to 200 psi and the reg yoked to the tank in
the usual fashion. Very simple system and it worked well – the exhaust into the
cabin was so small as to cause only a slight increase in cabin pressure because
the piston area is only a couple of square inches. Over pressure on a move into
shallower water was avoided by a circle-seal non-return vent valve – same one
used to suck a vacuum on the sub before diving. </DIV>
<DIV>I have some pretty good pictures of the manip on Sea Urchin which I’ll try
to dig up and post. Speaking of Sea Urchin, I have often toyed with the the idea
of putting out a Sea Urchin Kit – ala Kitteridge - but don’t know how much
interest there would be.</DIV>
<DIV>Phil</DIV>
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style='FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline'>
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<DIV><FONT size=3 face=Calibri></FONT> </DIV>
<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A title=alanlindsayjames@yahoo.com
href="mailto:alanlindsayjames@yahoo.com">Alan James</A> </DIV>
<DIV><B>Sent:</B> Sunday, January 26, 2014 11:54 AM</DIV>
<DIV><B>To:</B> <A title=personal_submersibles@psubs.org
href="mailto:personal_submersibles@psubs.org">Personal Submersibles General
Discussion</A> </DIV>
<DIV><B>Subject:</B> Re: [PSUBS-MAILIST] Manipulators</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV
style='FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline'>
<DIV
style="FONT-SIZE: 10pt; FONT-FAMILY: helveticaneue, helvetica neue, helvetica, arial, lucida grande, sans-serif; COLOR: #000; BACKGROUND-COLOR: #fff">
<DIV><SPAN>Here is a great looking manipulator for .31c US.</SPAN></DIV>
<DIV
style="FONT-SIZE: 13px; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>Not
sure what the postage is from Poland. I tried the "buy now" on another link but
</SPAN></DIV>
<DIV
style="FONT-SIZE: 13px; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>couldn't
initiate a purchase. </SPAN></DIV>
<DIV style="BACKGROUND-COLOR: transparent"><SPAN><A
href="http://http//robosklep.eu/sklep/pl/p/Hydraulic-Arm/231">http://http://robosklep.eu/sklep/pl/p/Hydraulic-Arm/231</A><BR></SPAN></DIV>
<DIV
style="FONT-SIZE: 13px; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent">Alan</DIV>
<DIV> </DIV>
<DIV
style="FONT-SIZE: 10pt; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif">
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style="FONT-SIZE: 12pt; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif">
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<HR SIZE=1>
<FONT size=2 face=Arial><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Alan
James <alanlindsayjames@yahoo.com><BR><B><SPAN
style="FONT-WEIGHT: bold">To:</SPAN></B> Personal Submersibles General
Discussion <personal_submersibles@psubs.org> <BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Saturday, January 25, 2014 1:20
PM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [PSUBS-MAILIST]
Manipulators<BR></FONT></DIV>
<DIV class=y_msg_container>
<DIV> </DIV>
<DIV id=yiv0693698077>
<DIV>
<DIV
style="FONT-SIZE: 10pt; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); BACKGROUND-COLOR: rgb(255,255,255)">
<DIV><SPAN>Thanks Vance,</SPAN></DIV>
<DIV
style="FONT-SIZE: 13px; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>I'll
have a look in to the pneumatic manipulator; however there are
problems</SPAN></DIV>
<DIV
style="FONT-SIZE: 13px; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>that
come to mind, like how do you stop the whole unit going in & out like a
concertina</SPAN></DIV>
<DIV
style="FONT-SIZE: 13px; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>with
water pressure changes.</SPAN></DIV>
<DIV
style="FONT-SIZE: 13px; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>Alan</SPAN></DIV>
<DIV> </DIV>
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style="FONT-SIZE: 10pt; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif">
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style="FONT-SIZE: 12pt; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif">
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<DIV dir=ltr>
<HR SIZE=1>
<FONT size=2 face=Arial><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B>
"vbra676539@aol.com" <vbra676539@aol.com><BR clear=none><B><SPAN
style="FONT-WEIGHT: bold">To:</SPAN></B> personal_submersibles@psubs.org <BR
clear=none><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Saturday, January
25, 2014 10:50 AM<BR clear=none><B><SPAN
style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [PSUBS-MAILIST]
Manipulators<BR clear=none></FONT></DIV>
<DIV class=yiv0693698077y_msg_container>
<DIV> </DIV>
<DIV id=yiv0693698077>
<DIV><FONT color=black size=3 face="Arial, Helvetica, sans-serif"><FONT
class=yiv0693698077Apple-style-span size=3>I can't answer, as I have precisely
zero experience with pneumo manips. Nuytco did in fact cook one up for the Sea
Urchin, which seemed to work okay, but I don't know anything about it. Sorry.
That said, if it's cheap and it works (even if it's a pain in the ass) then it's
worth having. Subs should be able to DO something, not just cruise around like
an oversized camera housing with motors. I'd give serious consideration to the
ball and socket arm, which functions adequately down to about 600 feet
(according to the boys who have used them). We figure one would cost about
$500-600 USD to machine, plus material and welding. A thousand bucks or a little
more isn't bad, considering there are exactly three moving parts in the whole
thing (as opposed to a hydraulic system which has about 3 moving parts to the
running inch).</FONT> </FONT>
<DIV><FONT class=yiv0693698077Apple-style-span size=3>Vance<BR
clear=none></FONT><BR clear=none><BR clear=none>
<DIV
style="FONT-SIZE: 10pt; FONT-FAMILY: helvetica, arial; COLOR: black">-----Original
Message-----<BR clear=none>From: Alan <alanlindsayjames@yahoo.com><BR
clear=none>To: Personal Submersibles General Discussion
<personal_submersibles@psubs.org><BR clear=none>Sent: Fri, Jan 24, 2014
3:12 pm<BR clear=none>Subject: Re: [PSUBS-MAILIST] Manipulators<BR
clear=none><BR clear=none>
<DIV id=yiv0693698077yqt29311 class=yiv0693698077yqt2733007285>
<DIV id=yiv0693698077AOLMsgPart_2_cb061d65-bd5c-4b7e-9713-d6e514d39640>
<DIV class=yiv0693698077aolReplacedBody>
<DIV>One more question Vance & I'll leave you in peace</DIV>
<DIV>for a week.</DIV>
<DIV>For a small non commercial submersible operating to 500 ft</DIV>
<DIV>that has a very limited use for a manipulator other than it being there
</DIV>
<DIV>just in case we come across some item of value. Is a pneumatic manipulator
a good</DIV>
<DIV>option? Air is already there & wouldn't be consumed much because</DIV>
<DIV>of the limited use. No noise & expensive space consuming hydraulic
system.</DIV>
<DIV>And as you say there are options for lifting heavier items.</DIV>
<DIV>Thanks,</DIV>
<DIV>Alan</DIV>
<DIV><BR clear=none>Sent from my iPad</DIV>
<DIV><BR clear=none>On 25/01/2014, at 8:01 am, Joe Perkel <<A
href="mailto:josephperkel@yahoo.com" shape=rect rel=nofollow target=_blank
ymailto="mailto:josephperkel@yahoo.com">josephperkel@yahoo.com</A>> wrote:<BR
clear=none><BR clear=none></DIV>
<BLOCKQUOTE type="cite">
<DIV>
<TABLE style="COLOR: black" cellSpacing=0 cellPadding=0 border=0>
<TBODY>
<TR>
<TD vAlign=top>I particularly liked the PVC tube with the furled lift
bag and air source, now that's got real "get work done" utility.<BR
clear=none><BR clear=none>It seems to me that a permanently mounted air
source terminating just aft of the claw is a natural companion set-up
for anyone with a manipulator on a PSUB. <BR clear=none><BR
clear=none>Joe<A href="http://overview.mail.yahoo.com/?.src=iOS"
shape=rect rel=nofollow target=_blank><BR clear=none><BR clear=none>Sent
from Yahoo Mail for iPad</A></TD></TR></TBODY></TABLE>
<DIV id=yiv0693698077_origMsg_>
<DIV>
<DIV> </DIV>
<DIV>
<DIV style="FONT-SIZE: 0.9em">
<HR SIZE=1>
<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN> </B>Alan James <<A
href="mailto:alanlindsayjames@yahoo.com" shape=rect rel=nofollow target=_blank
ymailto="mailto:alanlindsayjames@yahoo.com">alanlindsayjames@yahoo.com</A>>;
<BR clear=none><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN> </B>Personal
Submersibles General Discussion <<A
href="mailto:personal_submersibles@psubs.org" shape=rect rel=nofollow
target=_blank
ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A>>;
<BR clear=none><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN> </B>Re:
[PSUBS-MAILIST] Manipulators <BR clear=none><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN> </B>Fri, Jan 24, 2014 6:09:42 PM <BR
clear=none></DIV><BR clear=none>
<TABLE style="COLOR: black" cellSpacing=0 cellPadding=0 border=0>
<TBODY>
<TR>
<TD vAlign=top>
<DIV
style="FONT-SIZE: 10pt; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); BACKGROUND-COLOR: rgb(255,255,255)">
<DIV><SPAN>Thanks Vance,</SPAN></DIV>
<DIV
style="FONT-SIZE: 13px; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>that's
shed some light on the subject.</SPAN></DIV>
<DIV
style="FONT-SIZE: 13px; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN>Alan</SPAN></DIV>
<DIV> </DIV>
<DIV
style="FONT-SIZE: 10pt; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif">
<DIV
style="FONT-SIZE: 12pt; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif">
<DIV id=yiv0693698077yqt26995 class=yiv0693698077yqt7532104679>
<DIV dir=ltr>
<HR SIZE=1>
<FONT size=2 face=Arial><B><SPAN
style="FONT-WEIGHT: bold">From:</SPAN></B> Vance Bradley <<A
href="mailto:Vbra676539@AOL.com" shape=rect rel=nofollow target=_blank
ymailto="mailto:Vbra676539@AOL.com">Vbra676539@AOL.com</A>><BR
clear=none><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> Personal
Submersibles General Discussion <<A
href="mailto:personal_submersibles@psubs.org" shape=rect rel=nofollow
target=_blank
ymailto="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A>>
<BR clear=none><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B>
Saturday, January 25, 2014 5:42 AM<BR clear=none><B><SPAN
style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [PSUBS-MAILIST]
Manipulators<BR clear=none></FONT></DIV>
<DIV class=yiv0693698077y_msg_container>
<DIV> </DIV>
<DIV id=yiv0693698077>
<DIV>
<DIV>Alan,</DIV>
<DIV>I've seen the discussion. The smallest sub I know of with a
manipulator on board is the Deepworker. No exfra tanks there.
Metacentric vs CG works in all directions. Yes, you get movement and no
it's not a problem in my experience. I did operate the bigger subs but
also smaller ones, to include Aquarius, briefly in a DW, plus three
different K-boats, so speak with some experience. You put everything you
imagine on a small sub, you get a big sub. In any case, It's probably
best to think of a psub as a work in progress. Get the boat done, go
play, scratch head, get more work done, go play, scratch head......and
so it goes.</DIV>
<DIV>Vance</DIV>
<DIV><BR clear=none>Sent from my iPhone</DIV>
<DIV id=yiv0693698077yqt53812 class=yiv0693698077yqt8075494090>
<DIV><BR clear=none>On Jan 24, 2014, at 3:20 AM, Alan James <<A
href="wlmailhtml:{E39B5A04-C091-42CE-B7B5-8A6801445915}mid://00000056/"
shape=rect rel=nofollow>alanlindsayjames@yahoo.com</A>> wrote:<BR
clear=none><BR clear=none></DIV>
<DIV></DIV>
<BLOCKQUOTE type="cite">
<DIV>
<DIV
style="FONT-SIZE: 10pt; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); BACKGROUND-COLOR: rgb(255,255,255)">
<DIV>Vance,</DIV>
<DIV>a couple of people have mentioned lately the problem of the
shifting of</DIV>
<DIV>balance as you reach out with a manipulator & have talked
about countering it with</DIV>
<DIV>trim tanks. Is it a big deal if you go nose down, tail up?
Possibly more of a problem working on a </DIV>
<DIV>vertical face than picking something up off the bottom. </DIV>
<DIV>Some of our subs will be a lot smaller than <SPAN
style="FONT-SIZE: 10pt">the working </SPAN><SPAN
style="FONT-SIZE: 10pt">subs you were in so the problem would be
</SPAN></DIV>
<DIV
style="FONT-SIZE: 10pt; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN
style="FONT-SIZE: 10pt">accentuated in our case.</SPAN></DIV>
<DIV
style="FONT-SIZE: 10pt; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN
style="FONT-SIZE: 10pt">Can you give us some of your experience on
this thanks & in your opinion is it worth messing</SPAN></DIV>
<DIV
style="FONT-SIZE: 10pt; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN
style="FONT-SIZE: 10pt">about with the trim while operating the
manipulator.</SPAN></DIV>
<DIV
style="FONT-SIZE: 10pt; FONT-FAMILY: helveticaneue, 'Helvetica Neue', helvetica, arial, 'Lucida Grande', sans-serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><SPAN
style="FONT-SIZE: 10pt; BACKGROUND-COLOR: transparent">Alan</SPAN><BR
clear=none></DIV>
<DIV> </DIV></DIV></DIV></BLOCKQUOTE></DIV>
<BLOCKQUOTE type="cite">
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