[PSUBS-MAILIST] Pressure Test

Mon Jul 3 22:49:21 EDT 2017

Hi Greg,

Can you send me an email off list please? I can see you're on this thread
but it doesn't show me the actual email address, and the address I have for
you bounces.

Thanks,

Alec

On Mon, Jun 26, 2017 at 5:19 PM, james cottrell via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> Hank,
>
> I'm surprised to hear you say that the CNG sphere is too light. My "seat
> of the pants" engineering tells me that a CNG sphere would be plenty. Are
> you sure its too light? If memory serves me correctly, the sphere that Ron
> Allum made was 42" OD x 2.5" thick gun barrel steel and had a 1.4/1 safety
> factor at 38,000 ft.
>
> What thickness acrylic do you need for the port? I'll donate a piece of 4"
> to the cause if that will help.
>
> Greg
>
>
> ------------------------------
> *From:* hank pronk via Personal_Submersibles <personal_submersibles at psubs.
> org>
> *To:* Personal Submersibles General Discussion <
> personal_submersibles at psubs.org>
> *Sent:* Monday, June 26, 2017 4:10 PM
> *Subject:* Re: [PSUBS-MAILIST] Pressure Test
>
> Greg,
> I do not have a plan for getting on site.  I have a plan to get there,
> East Coast that is.  I can haul it cross country myself.
> Right now it is a dream really, not a plan.  But Elementary 3000 started
> that way.  I do have it mostly figured out, and I have an EFA guy lined up
> through Karl Stanley.   I will have two heads pressed and machined at
> Edmonton Exchanger in Edmonton Alberta.  My original CNG sphere plan is to
> light.
> I think the getting on site part will evolve, I am sure money will make
> that happen easily.
> Thanks' for calling it "interesting" and not ridiculous. ;-)
> Hank
>
>
> On Monday, June 26, 2017 12:01 PM, Alan via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>
> Thanks David,
> I get 7000 lumens. Have a dimmer control for it but
> haven't tried it yet.
> Alan
>
> Sent from my iPad
>
> On 27/06/2017, at 3:08 AM, David Colombo via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
> Hi Alan, Looks great!, what Lumens did you get with this design?
>
>
> Best Regards,
> David Colombo
>
> 804 College Ave
> Santa Rosa, CA. 95404
> (707) 536-1424
> www.SeaQuestor.com <http://www.seaquestor.com/>
>
>
> On Mon, Jun 26, 2017 at 4:48 AM, hank pronk via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
> Alan,
> That really turned out nice, how did you mould the polyurethane? that
> stuff sticks like mad.
> I would leave the white gasket, it looks fine.  Either the gasket
> thickness is not even or the seat is not perfectly matched to the Lenz.
>
>
> On Sunday, June 25, 2017 10:30 PM, Alan via Personal_Submersibles <personal_submersibles at psubs.
> org <personal_submersibles at psubs.org>> wrote:
>
>
> Pressure tested my light to 1000 psi for an hour using the water blaster
> & no leaks! I didn't have a pressure relief valve in the system as I do
> with
> my air pressure set up & it was a pain getting the chamber lid off. I had
> thought the water blaster would have leaked a bit of pressure but it
> didn't.
> The sealing system for the wires was a 3 layered process; encapsulating the
> wires in the epoxy, then coating the insulation for an inch up from where
> they came
> out of  the epoxy, & over the epoxy with a 2 part heat activated pvc glue
> that
> they use on inflatable boats. This glue worked a lot better on the pvc
> insulation
> than several others I tried like E61000 (supposed to be better than shoe
> goo),
> 3M 5200 & polyurethane.
> Over this, to tidy it up & act as a cable support, I moulded polyurethane.
> In the attached photos the white ptfe gasket that the lens sits on looks
> wet
> but it is just the compression of the lens against the gasket. I don't
> like this
> from a cosmetic point & may change it. The 2 objects with the light are the
> male mould for the polyurethane cable support & the silicone mould for the
> same.
> Alan
>
>
>
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