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From: "William Allen" <william@ca*.co*>
To: "Dell Motes" <dell@di*.co*>,
     "David Shimell (shimell)" ,
    
Subject: Re: Shimellian Crotch Strap
Date: Tue, 20 Apr 1999 16:47:10 -0400
The beers for lubrication while using the file,
-----Original Message-----
From: Dell Motes <dell@di*.co*>
To: David Shimell (shimell) <shimell@se*.co*>; techdiver@aquanaut.com
<techdiver@aquanaut.com>
Date: Tuesday, April 20, 1999 4:06 PM
Subject: Re: Shimellian Crotch Strap


>David,
>A rattail file and a few beers later and that 1 inch slot will be a 2 inch
>slot ;-)
>Chainsaw files are great also and work better on the stainless steel, but
it
>probably won't be worth spit after using it on your backplate.
>More up-to-date backplates have already addressed this too.
>Dell Motes
>Dive Rite
>117 W.Washington St.
>Lake City, Fla. 32055
>www.Dive-Rite.com
>
>
>
>
>-----Original Message-----
>From: David Shimell (shimell) <shimell@se*.co*>
>To: techdiver@aquanaut.com <techdiver@aquanaut.com>
>Date: Tuesday, April 20, 1999 2:00 PM
>Subject: FW: Shimellian Crotch Strap
>
>
>>All
>>
>>I received an email wanting to know more about the way I set up my crotch
>>strap on my DIR rig.  This may be of interest to others, so here is how I
>do
>>it...
>>
>>Firstly, my crotch strap is made of 2" webbing - kinder on those most
>>precious parts when scootering.
>>
>>The webbing is just slightly thinner than the thick stuff I use on my
>>harness straps.  A loop is formed at both ends of the crotch strap using
>>single SS weight belt retainers for each loop.  As this would be hard to
>>explain, I hope it is obvious how you would form a loop by passing a
double
>>thickness of the webbing through a weight retainer.  The weight belt
>>retainer needs to be one of the straight varieties to take the double
>>thickness of the webbing.  (The straight varieties have wider gaps than
the
>>wavy weight belt retainers.) This weight belt retainer also holds the
>>D-rings as per usual.
>>
>>The trick, apart from the slightly thinner webbing, is in getting the
>>webbing onto the 1" ish slot in the backplate.  I do this as the first
step
>>in rigging the crotch strap.
>>
>>First pass a thickness of webbing through the slot.  To do this you must
>>reduce the width of the webbing by folding both edges of the 2" webbing in
>>on themselves to create a double thickness of 1" wide webbing.  Thus
>>creating a sort of letter "C" on its side.  Pull this though ensuring the
>>section in the slot remains as a "C" and does not fold asymmetrically.
>Once
>>you have the right length of loop to correctly position the butt D-ring,
>>then you can slip the webbing through the weight belt retainer adding the
>>D-ring.  In order to have the setup look good, I have the edges of the "C"
>>innermost in the loop so that they are not visible.  The double thickness
>of
>>the webbing (the "C") in the slot will also act as re-enforcement in the
>>event of abrasion from the slot, of which I have seen none.
>>
>>I scooter and have never had the arrangement slip as it is rock solid
>tight.
>>True Hogarthian to my way of thinking: minimum equipment, multiple
purposes
>>for the same item (the weight belt retainer), and adjustable if necessary
>>afterwards.  Also, no damage to the webbing as would be the case with a
>>bolt.
>>
>>Let me know if you have any questions.
>>
>>David Shimell
>>Project Manager, Sequent Computer Systems Ltd., Sandton, South Africa.
>>Email: shimell@se*.co* <mailto:shimell@se*.co*>
>>
>>-----Original Message-----
>>From: David Shimell (shimell) [SMTP:shimell@se*.co*]
>><mailto:[SMTP:shimell@se*.co*]>
>>Sent: Tuesday, April 20, 1999 5:28 PM
>>To: Taylor, John; 'David Shimell'
>>Cc: 'techdiver@aquanaut.com'
>>Subject: RE: DIR at Palawan
>>
>>John
>>
>>>Many thanks for all your help with advice on gear selection and rigging
>for
>>>my recent trip to Palawan. <snip>
>>
>>Thanks for the positive feedback.
>>
>>>Your tip about not having the harness too tight was spot on. Also, I
found
>>>the "Shimellian" crotch strap (using weight retainers instead of bolts)
to
>>>be extremely stable and easy to adjust. The harness now just needs some
of
>>>the extra webbing trimmed off.
>>
>>"Shimellian".  Hmmm, it has a nice sound to it.  I'll leave now before my
>>head is too large to get through the door.  Ooops, too late :-).
>>
>>David Shimell
>>Project Manager, Sequent Computer Systems Ltd., Sandton, South Africa.
>>Email: shimell@se*.co* <mailto:shimell@se*.co*>
>><mailto:shimell@se*.co* <mailto:shimell@se*.co*> >
>>
>>-----Original Message-----
>>From: Taylor, John [SMTP:john.taylor@cs*.co*.uk*]
>><mailto:[SMTP:john.taylor@cs*.co*.uk*]>
>>Sent: Wednesday, April 14, 1999 4:26 AM
>>To: 'David Shimell'
>>Cc: 'techdiver@aquanaut.com'
>>Subject: DIR at Palawan
>>
>>Dave,
>>
>>Many thanks for all your help with advice on gear selection and rigging
for
>>my recent trip to Palawan.
>>
>>The new wing (DR junior) and backplate worked out just fine, though I did
>>bob along with my head in the sand for the first dive. Moving the bands a
>>little further down the tanks sorted this completely. It was so much nicer
>>not having to wear a weightbelt! I found I had plenty of lift for twins
>plus
>>stage.
>>
>>I had no problems with getting in and out of the harness (deflating the
>wing
>>just prior to doffing when using a chase boat is essential here, since the
>>slack is taken up by the buoyancy of the wing).
>>
>>Your tip about not having the harness too tight was spot on. Also, I found
>>the "Shimellian" crotch strap (using weight retainers instead of bolts) to
>>be extremely stable and easy to adjust. The harness now just needs some of
>>the extra webbing trimmed off.
>>
>>Best Regards,
>>
>>JT
>>--
>>John Taylor, Marketing and Trading Systems, IT Development
>>Credit Suisse Financial Products (Hong Kong) Ltd, 13F, Tower 3, Exchange
>>Square, Central, Hong Kong
>>Office: +852 2101 6927, Fax: +852 2101 7698, Mobile: +852 9031 6395,
email:
>>john.taylor@cs*.co*.uk* <mailto:john.taylor@cs*.co*.uk*>  [private e-mail:
>>live4diving@ho*.co* <mailto:live4diving@ho*.co*> ]
>>
>>--
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>
>--
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