[PSUBS-MAILIST] Battery Pods Question

[Rick Patton via Personal_Submersibles]

What was your reason for having the flange come in less than the ID of your
pipe?

I did mine flush like Hank did and one thing that comes to mind is that it
would create an area that might be hard to see and effectively wire brush
or grind to deal with future rust down the road? That was something that I
thought about for the hull side of the web on my T bar frames.
Rick

On Tue, Jun 12, 2018 at 6:08 AM hank pronk via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> James,
> I can't see any real benefit to having the flange ring protrude inside the
> pod.  If the ring is flush with the inside, the load still transfers
> directly onto the pod wall.  You can still have a full penetration weld
> from one side and grind it clean on the inside.  So why not? that would be
> how I did it, and you really have no choice if you need the height for
> batteries.
> Hank
>
> On Tuesday, June 12, 2018, 5:44:49 AM MDT, James Frankland via
> Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>
>
> Hi All
>
> I am making new battery pods for Skadoc.  I am thinking of making
> the removable ends slightly different to how I did it on the K.  On that, I
> put the flanges on to make like a standard flanged end.  However, I made
> them like you would a hatch, ie with the centre of the flange being welded
> to the centre of the tube.  So there is overlap on both sides of the ID and
> OD of the tube.  Bit difficult to explain.  Pic here of the K ones when I
> was making them.
>
>   K350 pod ends.
>
> The problem with these is that the overlap onto the inside diameter of the
> tube makes the hole smaller and you cant slide the trays out.
>
> With the new one, I have made rolling trays and I want them to slide
> straight out.
>
> So, I am thinking I can make the flanges flush with the inside diameter of
> the tube.
>
> I have not started this part yet, so any advice greatly appreciated.
>
>
> ​
> Not a very good picture, but new trays with rollers made.
>
> Thanks
> James
>
>
>
> ​
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