[PSUBS-MAILIST] fiberglass

via Personal_Submersibles personal_submersibles at psubs.org
Thu Jun 9 09:17:28 EDT 2016


How does the rotator attach to the motor?

Thank you,
Scott Waters

>  -------Original Message-------
>  From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
>  To: Personal Submersibles General Discussion <personal_submersibles at psubs.org>
>  Subject: Re: [PSUBS-MAILIST] fiberglass
>  Sent: Jun 08 '16 10:14
>  
>  James,
>  Yes I always thread in penetrators now, right beside the brush on each
>  side, super easy!
>  As for taking the motor apart, the wires are coiled inside to allow
>  for removing the end cap with the brushes. Its a bitch, and I hate it!
>  but it is better than try to rotate the wires in the tight turn in the
>  housing. Of coarse a test assemble to ensure the wire length works
>  before epoxy is important. There is potential for damaging a wire and
>  not knowing it is damaged. Maybe my motors have a tighter turn in them
>  than the 101's. Either way, I like the way I do it now.
>  Hank
>  ps; nice picture
>  
>  On Wednesday, June 8, 2016 8:58 AM, James Frankland via
>  Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>  
>  Hank. What if you have to take the motors apart for anything? They are
>  potted now and you get the same problem as I have\had?? I made a
>  brilliant picture.
>  
>  The problem for me is getting the cables from the potted shafts onto
>  the spade terminals while trying to push the brushed back through a
>  2mm hole.... Probably the same awkward bend as you mentioned.
>  
>  If I did this again, I would probably have the cables threaded and
>  going outside and then back into the hull through a standard
>  penetrator. If I read it right that's what you've done. And I might
>  even do away with the rotating motors and have 4 of them static.
>  
>>  
>  On 8 June 2016 at 12:39, hank pronk via Personal_Submersibles
>  <personal_submersibles at psubs.org> wrote:
>  
>  > O ya one more thing, to remove the original shaft, heat it up first,
>  > there seems to be some sort of lock tight on the threads.
>  > Hank
>  >
>  > On Wednesday, June 8, 2016 5:35 AM, hank pronk via
>  > Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>  >
>  > I have opted for drilling and tapping in penetrators rather then run
>  > the wires through the shaft opening. If you go with your wires
>  > through the pivot shaft, I found that a two step process works for
>  > me. First I put the wires through the motor opening and seal them in
>  > place. The epoxy does not need to go into the motor, so I just
>  > silicone the wires at the motor so epoxy does not run into the
>  > motor. Alan had a great idea to use chewing gum. Then I feed the
>  > sealed wires through the shaft and then thread the shaft into the
>  > motor and fill with either epoxy or casting resin. I use a casting
>  > resin with super high compressive strength. If you install the wires
>  > with the epoxy into the shaft first, it is a bugger to rotate the
>  > shaft into the threads because my motors have an akward bend that
>  > the wires have to make. I have not used 101's though, just 50 lb
>  > thrust, but I think they are similar.
>  > Hank
>  >
>  > On Wednesday, June 8, 2016 4:09 AM, James Frankland via
>  > Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>  >
>  > I made the rotating through hulls with 2x brass rods passing through
>  > into the hull.
>  >
>  > Personally, I find these motors and in particular these through
>  > hulls the single most time consuming part of psubbing. Difficult to
>  > construct and maintain.
>  >
>  > http://www.guernseysubmarine.com/publication2_files/Page21512.htm
>  > http://www.guernseysubmarine.com/extended_files/Page24592.htm
>  >
>  > Biggest problem is that when you have filled the inside of the
>  > through hull with epoxy, there is no longer any adjustment on the
>  > cable. So you have to make the cables fit without touching any part
>  > of the motor innards. Some sort of modification needed im sure. Plus
>  > the motors jam in the through hull tubes. Oil compensation is messy
>  > and a nuisance.
>  >
>  > I have seen Emile's hubless motors and these are much better, but
>  > not available to us at the moment I don't think.
>  >
>  > I just took delivery today of 8 brand new AGM batteries...... :)
>  >
>  > Regards
>  > James
>  >
>  > On 7 June 2016 at 19:59, via Personal_Submersibles
>  > <personal_submersibles at psubs.org> wrote:
>  >
>  >> How has everyone retrofitted the MinKota's to have a 1" rotating
>  >> shaft to go through the penetrators?
>  >>
>  >> Thank you,
>  >> Scott Waters
>  >>
>  >>> -------Original Message-------
>  >>> From: Rick Patton via Personal_Submersibles
>  >> <personal_submersibles at psubs.org>
>  >>> To: Personal Submersibles General Discussion
>  >> <personal_submersibles at psubs.org>
>  >>> Subject: Re: [PSUBS-MAILIST] fiberglass
>  >>> Sent: Jun 07 '16 13:10
>  >>>
>  >>> I have the Minn-Kota 101,s and would like to see how those who
>  >> have
>  >>> done it have passed the power cables from the oil filled motor
>  >> threw
>  >>> the fitting that rotates and passes threw the hull to the
>  >> inside.
>  >>>
>  >>> Rick
>  >>>
>  >>> On Fri, May 27, 2016 at 1:53 PM, Alan James via
>  >> Personal_Submersibles
>  >>> <personal_submersibles at psubs.org> wrote:
>  >>>
>  >>>> Brian,
>  >>>> something you could experiment with is applying epoxy to the
>  >> glass
>  >>>> mat that
>  >>>> you want to adhere or on the sub itself & wait till it gets
>  >> tacky
>  >>>> before applying it.
>  >>>> Then apply the rest of the epoxy later, wait till the last
>  >> coat gets
>  >>>> tacky & add some more
>  >>>> glass cloth.
>  >>>> You could take your time with that process, but the epoxy is
>  >> twice
>  >>>> the cost of the polyester.
>  >>>> Alan
>  >>>>
>  >>>> -------------------------
>  >>>> FROM: Brian Cox via Personal_Submersibles
>  >>>> <personal_submersibles at psubs.org>
>  >>>> TO: PSubs <personal_submersibles at psubs.org>
>  >>>> SENT: Saturday, May 28, 2016 11:20 AM
>  >>>> SUBJECT: [PSUBS-MAILIST] fiberglass
>  >>
>  >>>>
>  >>>> Hank, I wanted to mention that some of my brilliant upside
>  >> down
>  >>>> fiberglass work did not go that great. I did not get the
>  >> adhesion
>  >>>> that I should have, some place seemed fine but other areas I
>  >> didn't
>  >>>> get the resin to soak in good enough. I may try something
>  >> else next
>  >>>> time. I may put an initial coat of resin on the underside,
>  >> soak the
>  >>>> fiberglass and then try to compress it up there some how with
>  >> a
>  >>>> plastic mold release barrier.
>  >>>>
>  >>>> Brian
>  >>>> _______________________________________________
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>  >>>>
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>  >>>
>  >>>
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