[PSUBS-MAILIST] gamma's arm

[hank pronk via Personal_Submersibles]

Vance,
I have a solution for that, since I am missing the outer retainer. I can make a socket that is roughly the right size and use the Q ball as a mold and fill the void with polyurethane.  The inner socket can be polished in place.
Hank--------------------------------------------
On Sun, 9/21/14, Vance Bradley via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Subject: Re: [PSUBS-MAILIST] gamma's arm
 To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
 Received: Sunday, September 21, 2014, 8:15 PM
 
 One issue to keep in mind
 is that the socket is 316L ss and both the receiver and
 retainer must be radius machined to take the ball. And not
 just machined, but polished. Proper function is absolutely
 dependent on the quality of that surface. It takes a master
 machinist or a properly programmed CNC machine to get that
 right.
 Vance 
 
 Sent from my iPhone
 
 > On Sep 21, 2014, at 8:01 PM, Vance Bradley
 via Personal_Submersibles <personal_submersibles at psubs.org>
 wrote:
 > 
 > That
 sounds good.
 > Vance
 >
 
 > Sent from my iPhone
 > 
 >> On Sep 21, 2014,
 at 7:50 PM, hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
 wrote:
 >> 
 >>
 Vance,
 >> How about digging up those
 plans and I will put it together, since Gamma is half way
 there already.
 >>
 Hank--------------------------------------------
 >> On Sun, 9/21/14, Alan via
 Personal_Submersibles <personal_submersibles at psubs.org>
 wrote:
 >> 
 >>
 Subject: Re: [PSUBS-MAILIST] gamma's arm
 >> To: "Personal Submersibles
 General Discussion" <personal_submersibles at psubs.org>
 >> Received: Sunday, September 21, 2014,
 7:34 PM
 >> 
 >>
 Hank 
 >> from memory I was going to
 mount the ball the
 >> other way
 around
 >> & push the Q through
 >> the spindle shaft to it give more
 range. 
 >> The beauty of it was you
 already had a ball
 >> & matching
 seals inside a housing.
 >> Alan
 >> 
 >> Sent from
 >> my iPad
 >> 
 >>> On 22/09/2014,
 >> at 6:24 am, hank pronk via
 Personal_Submersibles <personal_submersibles at psubs.org>
 >> wrote:
 >>>
 
 >>> 
 >>>
 Alan,
 >>> I agree, except
 >> you would not have the full range of a
 true Q ball arm. 
 >> You would have
 total range from side to side but not up and
 >> down.  I was genuinely amazed at how
 well the operator
 >> worked that
 thing.  They were picking up items on the
 >> fly!
 >>
 Hank-------------------------------------------
 >>> On Sun, 9/21/14, Alan via
 >> Personal_Submersibles <personal_submersibles at psubs.org>
 >> wrote:
 >>>
 
 >>> Subject:
 >> Re: [PSUBS-MAILIST] gamma's arm
 >>> To:
 >>
 "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
 >>> Received: Sunday, September 21,
 2014, 7:11
 >> PM
 >>> 
 >>>
 Hank,
 >>> I
 >>> investigated the
 >> idea of modifying a large ball
 valve
 >>> to
 >> make a Q ball manipulator. It seemed
 doable
 >>> with the
 >>> right type
 >> of valve.
 >>>
 Alan
 >>> 
 >>> Sent from
 >>> my iPad
 >>> 
 >>>>
 On
 >> 22/09/2014,
 >>> at 2:19 am, hank pronk via
 >> Personal_Submersibles <personal_submersibles at psubs.org>
 >>> wrote:
 >>>> 
 >>>> Vance,
 >>>> I
 >>
 removed the arm from gamma along with
 >> the valve and supporting stuff. 
 Turns out that package
 >> is
 >>> chunky, 108 lbs.  Mystery solved!
 
 >> I have to admit, it was
 >>> a bad idea to
 >> mount the valve inside the ballast
 tank
 >> area.  A single drop of oil
 that leaks ends up fogging
 >> the
 >>> windows.  As part of my
 >> renovation, I am mounting the arm
 >>> and
 >> valve
 to a drop mechanism under the front ballast tank
 >>> along with a thruster package. 
 The
 >> entire assembly
 >>> including thrusters
 >> will be jettisoning.
 >>>> Dan Lance gave
 >> me a video to watch called
 >>> The dry
 >>
 divers, it shows the Q Ball arm in action.  That
 >>> little arm is quite impressive. 
 I would
 >> like to see the
 >>> plans for it.  I did
 >> not realize it actually used an
 actual
 >> Q ball.
 >>>> Hank
 >>
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 list
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 >>
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