[PSUBS-MAILIST] Skadoc Question

[James Frankland via Personal_Submersibles]

Hi All,

I made similar to how Antoine suggests on my K350.  I found them difficult
and time consuming to make.  I am trying to keep this simple.

Blue globes would be nice and easy !




On Mon, 11 May 2020 at 12:03, MerlinSub at t-online.de via
Personal_Submersibles <personal_submersibles at psubs.org> wrote:

> Pfister Blue Globes on both sides - depents on diameter they have
> differnet pressure test.
>
> My have 90 bar for two minutes in boilling water.. or something like that.
>
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> vbr Carsten
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> -----Original-Nachricht-----
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> Betreff: Re: [PSUBS-MAILIST] Skadoc Question
>
> Datum: 2020-05-11T11:49:17+0200
>
> Von: "Antoine Delafargue via Personal_Submersibles" <
> personal_submersibles at psubs.org>
>
> An: "Personal Submersibles General Discussion" <
> personal_submersibles at psubs.org>
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> hello James,
> funny I asked myself the same question the last few days.
>
> -blue globes are the simplest: rated 15bars I believe. Emile tested them
> to even higher pressure without sliding. with 2 on each end you have extra
> comfort.
> but that would not be class approved as any damage to the cable sleeve and
> you will be wet inside the sub.
>
> -Subconn as a high power line. but you have to check the maximum amperage.
> would be expensive. and lead time seemed a bit long last time this group
> discussed it.
>
> -Epoxy potting in some time of insert. you need nice craft skills I would
> think
>
> -Final option: a more elaborate design I used on pilot fish:
>  *a delrin sleeve goes into the penetration
> *inside runs a brass pin with a shoulder profile to prevent intrusion into
> the hull, the pin is glued in the delrin housing, and the cable is soldered
> into the pin. A blue globe caps it off so no water gets into the pin area.
> *inside the hull you have a delrin ring to isolate the electrical
> connection from the hull, then a brass screw covering the brass pin end and
> the retaining delring ring. the internal cable can be covered by that screw
> too via a crimp.
> this could even be more elaborate with orings rather than glue, and a
> system to make the inside of the hull water tight as well.
>
>
> regards
> Antoine
>
>
>
> On Mon, May 11, 2020 at 11:29 AM James Frankland via Personal_Submersibles
> <personal_submersibles at psubs.org> wrote:
>
>> Hi All
>> Continued to work on Skadocs new battery pod this weekend.
>>
>> I was making good progress until the coolant pump on my lathe broke
>> down.  Its all blocked with sludge.  Not looking forward to cleaning that
>> out....
>>
>> Anyway, I have a question.  How do you guys think I should take the power
>> from the pod into the hull?
>>
>> I found the K350 battery pod electrical through hulls tiresome to make
>> and fit.  So I want to do it different this time.
>>
>> Options.
>>
>> 1.  Proper sub conn bulkhead connector.
>>
>> 2.  Pipe fitting with a valve and detachable cables.  In the event of a
>> leak in the pod, the cables could be pulled clear and the valve closed.
>>
>> 3.  Blue Globe or similar cable glands.  Two on the pod, two on the
>> hull.
>>
>> Any ideas?  There are pro's and cons of each.
>>
>> [image: Pod.jpg]
>>
>>
>>
>>
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> 
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