Trying To Avoid and Electrical Mess

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  • rickwess
    Senior Member
    • Apr 2013
    • 777

    #1

    Trying To Avoid and Electrical Mess

    Here's what I'm trying to connect:
    • 2x 6S LiPo's
    • Swordfish Pro 200A ESC
    • BEC
    • Capacitor Bank (optional?)


    The motor part is obvious, but it will either be a LP4082 or NEU1521.

    My first question is if you think the cap bank is required? I expect the max current draw to be 140A.

    My second question, as the title states, is how to avoid the all electrical connections looking like a dogs breakfast? I was thinking about building a couple of terminal blocks that each of the above can just plug into. Solder the connectors together, then pot them with epoxy into a small box made from CF or 1/8" ply. Here's a basic drawing with top and side views. An extra set of bullets would need to be added if a cap bank was being used.

    Terminal Block.JPG

    I'd love to see pics of other set-ups.
    Last edited by rickwess; 10-26-2013, 02:56 PM.
  • ray schrauwen
    Fast Electric Addict!
    • Apr 2007
    • 9471

    #2
    What is the application? Mono or Hydro or cat?

    I use UBEC's but, I also use a separate small 2S lipo of LiFe pack to avoid wire mess. What KV?

    If you have the $$ for a Neu 1521 I suggest that or TP Power as they seem to be a bit nicer than Leopard.

    Cap bank depends on how hard you plan to push the setup or how hot of a wind you use.
    Nortavlag Bulc

    Comment

    • rickwess
      Senior Member
      • Apr 2013
      • 777

      #3
      Sorry............Boat is a DF35. I'm leaning more towards the LP4082 1600Kv.

      The main question was about the mess of wires. Trying to connect 2 batteries to an ESC and a BEC with a possible cap bank.

      Comment

      • Doby
        KANADA RULES!
        • Apr 2007
        • 7280

        #4
        More connections= more resistance....not usually a good idea.
        Grand River Marine Modellers
        https://www.facebook.com/search/top/...ne%20modellers

        Comment

        • rickwess
          Senior Member
          • Apr 2013
          • 777

          #5
          Originally posted by Doby
          More connections= more resistance....not usually a good idea.
          For sure.

          With a 2 battery set-up though, I'm already committed to a parallel adaptor between the batteries and ESC. The terminal block idea doesn't add more connections between the batteries and the ESC than what I'd have to do anyway. It just allows for a neat and clean tap for the BEC and cap bank.
          Last edited by rickwess; 10-26-2013, 06:59 PM.

          Comment

          • properchopper
            • Apr 2007
            • 6968

            #6
            Not sure this helps as it's in a cat which has the batteries spread out in the sponsons, but

            DSC04861.JPG DSC04862.JPG DSC04859.JPG
            2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
            2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
            '11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /Mono

            Comment

            • rickwess
              Senior Member
              • Apr 2013
              • 777

              #7
              Originally posted by properchopper
              Not sure this helps as it's in a cat which has the batteries spread out in the sponsons, but
              It does. I'll have to locate the batteries on either side of the keel so it will effectively be a similar layout. To keep the CoG close to 30%, I'm thinking they will be pretty much right beside the motor. Either that or the motor will need be mounted far forward. I'd like to keep the flex cable shorter though.

              Comment

              • steveo
                Fast Electric Addict!
                • Apr 2007
                • 1454

                #8
                Originally posted by properchopper
                Not sure this helps as it's in a cat which has the batteries spread out in the sponsons, but

                [ATTACH=CONFIG]107051[/ATTACH] [ATTACH=CONFIG]107052[/ATTACH] [ATTACH=CONFIG]107053[/ATTACH]
                Super clean layout, where did u get the clips holding ur parallel wires nice touch. I have to say I did the same type of motor mount glue in method but not enough glue area and motor mount popped loose just a heads up I know your boats are fast hate to see you have redo any nice work

                Comment

                • properchopper
                  • Apr 2007
                  • 6968

                  #9
                  Originally posted by steveo
                  Super clean layout, where did u get the clips holding ur parallel wires nice touch. I have to say I did the same type of motor mount glue in method but not enough glue area and motor mount popped loose just a heads up I know your boats are fast hate to see you have redo any nice work
                  Thanks for the compliment - my very early builds years ago gave new meaning to the term "bowl of spaghetti" look but over time I found cleaner layouts are worth the time during the build stage so working on/upgrading later on is less hassle.

                  The TOP SECRET/CASSIFIED ultra-slick wire holders are just simple automotive spark plug wire separators which come in a set for 6 cyl or V8 cars - I found these on ebay. Work nicely to route waterlines as well :

                  DSC05035.JPG

                  If you look closely to the right-most picture of the Cheetah you'll see another O-C trick to hide the esc wire ; it passes through rectangular brass tubing (painted grey) to hide/route the esc trigger wire - slick if I do say so myself

                  After bouncing an entire motor/battery tray rail setup loose with hobby store epoxy, it's West Marine 24hr. cure GFlex and stuff ain't never coming loose again
                  2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
                  2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
                  '11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /Mono

                  Comment

                  • rickwess
                    Senior Member
                    • Apr 2013
                    • 777

                    #10
                    Originally posted by properchopper
                    After bouncing an entire motor/battery tray rail setup loose with hobby store epoxy, it's West Marine 24hr. cure GFlex and stuff ain't never coming loose again
                    I like the boxing in of the rails so you can easily build up the epoxy. I assume there are holes in the bottom of the rail to allow the epoxy to flow through. At this point, the hull will fail before the joint does.

                    Comment

                    • properchopper
                      • Apr 2007
                      • 6968

                      #11
                      Originally posted by rickwess
                      I like the boxing in of the rails so you can easily build up the epoxy. I assume there are holes in the bottom of the rail to allow the epoxy to flow through. At this point, the hull will fail before the joint does.
                      Always drill holes sometimes (but not always ) I get them in a straight line)

                      DSC04952-1.JPG
                      2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
                      2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
                      '11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /Mono

                      Comment

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