[PSUBS-MAILIST] Battery Pods Question

Tue Jun 19 11:43:22 EDT 2018

James, if you look in the Psubs site under Projects, PC-1402 battery pods, submitted by Steve McQueen, you will see some photos of how Perry did it for the PC-14s. They had some overlap but could afford the extra size.  
Thanks,
Steve

---- Rick Patton via Personal_Submersibles <personal_submersibles at psubs.org> wrote: 
> Hey James
> My vote then would be to just flush the ID of the flange to the ID of the
> pipe with a full penn weld and call it good.
> Rick
> 
> On Tue, Jun 12, 2018 at 8:05 AM James Frankland via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
> 
> > Hi Rick,
> >
> > No, its not done.  The first pic was of the Ksub.  Those flanges were the
> > ones that had the overhang.  I have not started on the flanges for the new
> > one.   I am investigating....
> >
> >
> > On 12 June 2018 at 15:08, Rick Patton via Personal_Submersibles <
> > personal_submersibles at psubs.org> wrote:
> >
> >> Sounds like it’s done already? If you are happy with the quality of the
> >> welding , then can you notch the flange only where the tray hits?
> >> Rick
> >>
> >> On Tue, Jun 12, 2018 at 6:59 AM James Frankland via Personal_Submersibles
> >> <personal_submersibles at psubs.org> wrote:
> >>
> >>> Hi Guys,
> >>>
> >>> Brian.  The flanges are welded to both the tube and endcap.
> >>>
> >>> Rick.  The reason I made them protrude onto the inside is because I
> >>> wanted plenty of material at the joint, and didn't really know any
> >>> different.   I just made it like a hatch which protrudes on both sides.
> >>>
> >>> Sounds like the flush method will be ok.  It will be full penetration
> >>> welded of course.
> >>>
> >>> Thanks
> >>> James
> >>>
> >>>
> >>>
> >>> On 12 June 2018 at 14:44, Rick Patton via Personal_Submersibles <
> >>> personal_submersibles at psubs.org> wrote:
> >>>
> >>>> 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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> >>>>
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