Inherited Sturgeon Class

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  • Subculture
    Admiral

    • Feb 2009
    • 2407

    #46
    Put the electronics in some rice. I would also advise taking the cases off the radio items, as water can get into the boxes and hang around for a long time.

    That amount of water getting is obviously a major seal failure somewhere.

    Comment

    • redboat219
      Admiral

      • Dec 2008
      • 3378

      #47
      You could also use those dessicant packets used for high camera equipment.

      How about epoxy encapsulating the receiver as waterproofing?
      Last edited by redboat219; 03-22-2014, 05:46 AM.
      Make it simple, make strong, make it work!

      Comment

      • He Who Shall Not Be Named
        Moderator

        • Aug 2008
        • 13393

        #48
        Andy is spot on -- strip the heat-shrink away from the boards, and remove the receiver and servos from their cases and blow down the board.

        Ground yourself and the board. Use a stiff brush to scribe the contact areas under the chips -- that's where deposited minerals will bridge the contacts to degrade or kill the IC's ability to do useful work. Reassemble and test.

        BE CAREFUL next time, and check things over before throwing that thing into the water!

        We having fun yet??

        M
        Who is John Galt?

        Comment

        • Kazzer
          *********
          • Aug 2008
          • 2850

          #49
          At the risk of a mouth full of wrath from HWSNBN, I have always liked the idea of encapsulating the electronics with PlastiDip spray. It's a rubber coating that can be peeled off most things.
          Click image for larger version

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          My theory is that if you get a flood, as I have (thanks to some WTC supplier forgetting to put the tire valve in the end-cap), then this stuff will prevent too much water damage. As a precaution, however, I'd be inclined to strip off the PlastiDip after a flood, to allow it to thoroughly dry, and then re-apply.

          This material has to be much better than using Heat Shrink tubing, which to my mind, just holds water on the part.
          Stop messing about - just get a Sub-driver!

          Comment

          • Kazzer
            *********
            • Aug 2008
            • 2850

            #50
            Originally posted by Subculture
            Put the electronics in some rice.
            I had an unfortunate incident a few years ago. I just bought a new pontoon boat and we went down the canal for a spin with the family. My son Lance wanted to drive the boat home, and as we neared the dock, I grabbed a line and stood on the bow, ready to hop onto the dock.
            Lance was coming in a bit fast, so I told him to click it into reverse, just to slow things up a bit.

            Silly little bugger slammed it into reverse and revved it up. The result was the pontoon went backwards, I was left in mid air, with nothing underneath me. I hovered like that for what seemed like an eternity, and then - down I went! Up to my neck in water, weeds all over me. Iphone in pocket!

            I heard my son cry "Ohhhh! Nooooo!" knowing full well, that if I ever got out alive - he was a dead man! Everyone else was laughing their miserable heads off!

            Anyhow, I took the phone, rinsed it under the tap, then stuck it in a pound of rice.
            Next day I fired it up, and it continued to work - perfectly!
            Stop messing about - just get a Sub-driver!

            Comment

            • crazygary
              Captain
              • Sep 2012
              • 610

              #51
              Ahhh, Rice!!

              It's not just for steaming anymore!!

              CG

              Comment

              • He Who Shall Not Be Named
                Moderator

                • Aug 2008
                • 13393

                #52
                Originally posted by Kazzer
                I had an unfortunate incident a few years ago. I just bought a new pontoon boat and we went down the canal for a spin with the family. My son Lance wanted to drive the boat home, and as we neared the dock, I grabbed a line and stood on the bow, ready to hop onto the dock.
                Lance was coming in a bit fast, so I told him to click it into reverse, just to slow things up a bit.

                Silly little bugger slammed it into reverse and revved it up. The result was the pontoon went backwards, I was left in mid air, with nothing underneath me. I hovered like that for what seemed like an eternity, and then - down I went! Up to my neck in water, weeds all over me. Iphone in pocket!

                I heard my son cry "Ohhhh! Nooooo!" knowing full well, that if I ever got out alive - he was a dead man! Everyone else was laughing their miserable heads off!

                Anyhow, I took the phone, rinsed it under the tap, then stuck it in a pound of rice.
                Next day I fired it up, and it continued to work - perfectly!
                For Christ's sake, that was a thousand-years ago. Let it go, Bossl ... let it go!!!!

                (That was one hell of a way to start a business relationship -- sending the prospective business partner a bum SD and then demanding money for it. Nice, David...nice).

                M
                Who is John Galt?

                Comment

                • Ronin055
                  Lieutenant, Junior Grade
                  • Feb 2014
                  • 40

                  #53
                  Brief update:

                  Got the WTC in the tub last night. All systems appear to be functioning normally. So next opportunity, its back in the hull and forward with some running.

                  Comment

                  • trout
                    Admiral

                    • Jul 2011
                    • 3657

                    #54
                    Did you find where the water was coming in from?
                    If you can cut, drill, saw, hit things and swear a lot, you're well on the way to building a working model sub.

                    Comment

                    • He Who Shall Not Be Named
                      Moderator

                      • Aug 2008
                      • 13393

                      #55
                      likely you got a wire or something between the motor-bulkhead or forward dry space bulkhead o-ring and cylinder. Always inspect the seal after you install a bulkhead.

                      It's always the simple stuff that will get you!

                      M
                      Who is John Galt?

                      Comment

                      • redboat219
                        Admiral

                        • Dec 2008
                        • 3378

                        #56
                        Regarding installing bulkheads, is it advisable to lube the o-rings say with silicone oil or grease first?
                        Make it simple, make strong, make it work!

                        Comment

                        • Subculture
                          Admiral

                          • Feb 2009
                          • 2407

                          #57
                          You can wipe a small amount of silicone grease on, but generally the o-ring will fit just fine when dry.

                          Comment

                          • Ronin055
                            Lieutenant, Junior Grade
                            • Feb 2014
                            • 40

                            #58
                            I suspect (found) a loose component where the rudder control exits the WTC. I removed the piece, cleaned it and the WTC and used a particular amount of Aquarium silicone on the fitting. I let that sit for 24 hours and then preformed my tests last night.

                            And yes D. Ive had a wire get pinched in a seal once or twice. "Hey why wont this end cap go on?!" Oh because Im a knucklehead, LOL.

                            Ive got some more fittings to look over before the next outting. But I think its in hand at this point.

                            Cecil

                            Comment

                            • He Who Shall Not Be Named
                              Moderator

                              • Aug 2008
                              • 13393

                              #59
                              Good work, Cecil.

                              And I apply a coat of silicon to the o-ring once a year, and when I do, I wipe off the excess atop the o-ring once it's back in its groove. You silicon, or any thick grease exposed it only acts as a magnet to catch filings, dirt, and other craft that will cut or prevent a good seat between o-ring and cylinder. Andy's right, if you can put the bulkhead in without grease, you're ahead of the game.

                              And, Romel, I learned about the greasing and other need-to-know stuff about the hobby by actually doing it. You know: experience. Come on in ... the water's fine!

                              M
                              Who is John Galt?

                              Comment

                              • Ronin055
                                Lieutenant, Junior Grade
                                • Feb 2014
                                • 40

                                #60
                                Thanks for all the heads up guys.

                                I got notice today that the pool at the Alamo should be open in about three weeks. So hopefully then I will be able to see how she dives and how she preforms totally underwater while I can watch the sub. So far its only been surface driving and shallow runs.

                                I think there is a pill for shallow runs. Wait, never mind.

                                Comment

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