Two ESC’s into one receiver

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Two ESC’s into one receiver

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  • #45193
    Vince Rossiter
    Participant
      @vincerossiter31496

      I am in the process of building a stern wheel paddle boat based on plans by Glynn Guest – MB Oct 2012. I have gone for the same power units and ESC's as Glynn but propose to operate these via the Planet T5 receiver. Any advice on how this should be connected up to provide tank steering would be appreciated.p1020295.jpg

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      #5279
      Vince Rossiter
      Participant
        @vincerossiter31496
        #45194
        Malcolm Frary
        Participant
          @malcolmfrary95515

          Just figure out which slots on the RX correspond to the stick movements you want to use for the throttles. Its that simple.

          If the two ESCs both have BEC, winkle out the red pin of one of them and tape it back in a tidy manner,

          #45196
          LARRY WHETTON
          Participant
            @larrywhetton68737

            Hello Vince,

            i have built the wiggly using scrap box bits there be no advantage using tank steering,,

            its a stern wheeler so i would fit a rudder instead , and save a esc , a better turning controle , with rudder ,..

            my grandson now as the wheeler which he sails with out , radio , just sticks it on fixed rudder turn ,

            on the local pond , ……like a toy not the best stern wheeler,

            but still its your choice have a look at the puddle ducks site loads of info on paddlers,

            hope this helps cheers Larry…

            p9080020.jpgp9080023.jpg

            #45197
            ashley needham
            Participant
              @ashleyneedham69188

              I asked about this once, as I have never seen the rudder arrangement on a stern wheeler before. Apparently, and I may be speaking rubbish here, the real things had multiple rudders just forward of the wheel. I can certainly see that rudders in the paddle wheel efflux should work ok. Did the Glynn version have split paddle wheels??

              Given the trouble we had with weed this year, it being so hot for so long, a paddle wheeler migth be an attractive build??

              In answer to your question an Action p- something (p94??) would be the job. no doubt DM will supply the number. I will have a quick surf on a minute or more. Check the component shop website.

              Ashley

              #45199
              Vince Rossiter
              Participant
                @vincerossiter31496

                Thanks guys. I like the faring on your Wrigley Larry, I might do something similar. I was also thinking about doing something similar with the wheelhouse with some detail inside. However, I'm not sure how or where to fit rudders so I will adopt tank steering.

                Thanks also to Malcolm – I thought perhaps it was that simple and that one of the BEC leads would have to be disconnected.

                Also to Ashley, as I already have the Mtroniks ESC's I don't think I want to go with Action this time. And, yes, Gwynn's version did have split paddle wheels.

                Vince

                #45203
                Glynn Guest
                Participant
                  @glynnguest59245

                  Vince,

                  "Tank Steering", using the "up/down" motion of the sticks on a transmitter with two dual axis sticks has worked perfectly for me in previous models. I try to imagine that the transmitter in my hands is actually the model and thus the moment of the sticks corresponds to what I want the model to do.

                  Like most things, it takes a little time and effort to master. But, once learnt you can make the model perform very precise maneuvers.

                  Having said that, I have made great use of "elevon mixing" in the transmitter and this does take less skill to master.

                  It is after all your model, so built it any way you fancy. If it is not exactly doing what you want, then try changing things. This is how you learn and understand about something.

                  Glynn Guest

                  #45208
                  LARRY WHETTON
                  Participant
                    @larrywhetton68737

                    RUDDER is in front of paddles on bottom of stern rake , easy to fit , all stern wheelers use rudders ,

                    Larry….

                    #45209
                    LARRY WHETTON
                    Participant
                      @larrywhetton68737

                      p5-bancroft.jpg

                      sternwheeler_rudders.jpg Here you go , save your self some money, go with rudders…..larry

                      port belle rudder.jpg

                      #45213
                      Vince Rossiter
                      Participant
                        @vincerossiter31496

                        Thanks Larry very interesting. Not sure how it will save me money as I already have bought the two ESC's but if I make another in the future (or perhaps adapt this one) I will certainly try to be more authentic.

                        #54781
                        Fred Smith 1
                        Participant
                          @fredsmith1

                          the solution to your problem is simple trying to use "tank steering" is possible but difficult to use with any degree of accuracy. However a quick look around model radio suppliers will turn up an electronic mixer aimed at glider flyers 2 inputs 2 outputs. One input to throttle channel one input to rudder channel. One output to each esc.

                          **LINK**

                          £17 problem solved. Its one example I am sure if you search around you will find other.

                          #54819
                          fred
                          Participant
                            @fred20856

                            I have the left paddle controlled by the left hand up/down ratchet stick and the right by the right hand up/down

                            I've found with the tank steering once you have reached the speed you want leave the ratchet control alone and vary direction using the sprung control.

                            Where twin esc's come into there own, is you can spin the boat on the spot.

                            #54820
                            Dave Milbourn
                            Participant
                              @davemilbourn48782

                              Where twin esc's come into their own, is you can spin the boat on the spot.

                              Point of information – you can do this also with a proper marine motor mixer. Some of the mixers sold for aircraft elevons and flapperons just don't seem to work correctly when fitted in a model boat.
                              DM

                              #54821
                              fred
                              Participant
                                @fred20856

                                Quite right Dave,

                                Some people had been advocating using a rudder

                                I should have qualified it by adding using twin esc's in place of a rudder

                                #54822
                                Dave Milbourn
                                Participant
                                  @davemilbourn48782

                                  Rudders need a fast flow of water over them to be effective at turning the model. The slower the flow then the less effective they become. A paddle-boat is probably the extreme example of 'slow' as it relies on moving a large volume of water slowly for propulsion. That's why two independent paddles is the preferred set-up. Anyone who's built a stern-wheeler with one paddle will know what a pig they are to manoeuvre!
                                  My point is that you can use a motor mixer coupled to the two ESCs to make steering a little easier. There's an article here on the subject (Click on "Do they both go round, mister?&quot **LINK**

                                  DM

                                  #54827
                                  Malcolm Frary
                                  Participant
                                    @malcolmfrary95515

                                    Looking at the pictures in post#8, it looks like there are actually four blades and just one wide paddle wheel. I did read a while back that on the real thing, the pairs of rudder blades were independently controlled. This could get to be a handful on a model, so, if it has been built with two wheels, tank steering, especially with the help of a mixer, looks the best way to go.

                                    #54879
                                    Andy Hustler
                                    Participant
                                      @andyhustler32076

                                      Hi guys adding my two pennies worth .When my Amythest arrived from deans via Westborne models ,whom i cannot praise highly enough , i had my two motors one speed controllrer and instruction on how to wire up two motors through one speed controler also there was a V tail mixer unit , which i have no idea what it does but i am happy enough with the set up except for "Dopey" here cutting big lumps out of the hull to fit the shafts !!! .BUT i degress what i guess i am trying to say is that there is a gadget !!!!! , for want of better words , that will drive two controlers

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