Matt Thor 60" 1/72 Scale Akula II

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  • eckloss
    • Nov 2003
    • 1196

    #121
    Re: Matt Thor 60" 1/72 Scale Akula II

    Success..... things are actually going my way for once, dammit



    e.

    Comment

    • Ralph --- SSBN 598
      Junior Member
      • Oct 2012
      • 1417

      #122
      Re: Matt Thor 60" 1/72 Scale Akula II

      Nice connectors.

      I use a wheel collar, I soldier to the control rod going to the control surface(s).
      Then the wheel collar slips on the control rod from the cylinder and can be tightened down where ever needed to adjust the two rods to neutral.


      If there are two control rods coming from the control surfaces, I use a second collar on the first control rod to adjust eh second rod.
      (Looking for photo)

      I do something similar to make the connection from the main motor to the propeller shaft.

      Comment

      • JWLaRue
        Managing Editor, SubCommittee Report
        • Aug 1994
        • 4281

        #123
        Re: Matt Thor 60" 1/72 Scale Akula II

        They came out quite nice!

        Am interested in seeing how the threaded holes in the ABS (?) hold up over time.

        -Jeff
        Rohr 1.....Los!

        Comment

        • eckloss
          • Nov 2003
          • 1196

          #124
          Re: Matt Thor 60" 1/72 Scale Akula II

          Ralph, I may just end up using that method - because - Jeff, I am premature in my declaration of success. You are correct again, the plastic is losing the battle with the threaded set screws.

          e.

          Comment

          • Ralph --- SSBN 598
            Junior Member
            • Oct 2012
            • 1417

            #125
            Re: Matt Thor 60" 1/72 Scale Akula II

            Several things drive my building.
            Two are of them follow...
            1. I am cheap and try to use what I have in my parts boxes.
            2. The closest hobby shop or any type of hardware store is about 18 miles away, one way.

            On soldiering to the wheel collars. I grind a small groove to accept the size of push rod.
            Prep and tin both the collar and the rod.
            Use the soldiering iron to push the rod down in the groove.
            Make sure the set screw faces up so you can get to it when in place.

            Comment

            • JWLaRue
              Managing Editor, SubCommittee Report
              • Aug 1994
              • 4281

              #126
              Re: Matt Thor 60" 1/72 Scale Akula II

              One wheel collar, no solder.....two rods inserted, tighten set screw. Instant connection.

              What could be simpler and guaranteed to work?

              -Jeff
              Rohr 1.....Los!

              Comment

              • eckloss
                • Nov 2003
                • 1196

                #127
                Re: Matt Thor 60" 1/72 Scale Akula II

                K.I.S.S. always works

                I just ordered the 5/32" wheel collars needed to mate the 1/16" and 3/32" (2mm) rods.

                e.

                Comment

                • eckloss
                  • Nov 2003
                  • 1196

                  #128
                  Re: Matt Thor 60" 1/72 Scale Akula II

                  Re-working the linkages yet again. Going for a bit more strength with 3/32" rod as opposed to the 1/16" that I was originally using. With the 3/32 I could also solder on clevises. Everything is kept together by 3/16" wheel collars that finally arrived today. The linkage rods were checked for clearance of the prop shaft. I'm getting good throw on the planes and rudders.









                  .

                  Comment

                  • eckloss
                    • Nov 2003
                    • 1196

                    #129
                    Re: Matt Thor 60" 1/72 Scale Akula II

                    The propeller shaft:

                    The prop I'll be using for this boat takes a 5mm 1/8twist rod. Had to special order that from McMaster. A length was cut and soldered into a 3/16" ID tube, into which was also soldered at the other end a length of 3/16" piano wire.

                    The nose cone was attached and blended in. Still have to paint the tail cone for the prop. I will probably paint the tail and the prop both so they blend nicely together.









                    now on to some more sanding, smoothing, and scratch filling.

                    e.

                    Comment

                    • eckloss
                      • Nov 2003
                      • 1196

                      #130
                      Re: Matt Thor 60" 1/72 Scale Akula II

                      Done for today.

                      Tomorrow she gets trimmed out

                      .

                      Comment

                      • profesorul
                        Junior Member
                        • Apr 2014
                        • 106

                        #131
                        Re: Matt Thor 60" 1/72 Scale Akula II

                        @ eckloss ,

                        Way did You make / used such a long thread on a brass road ? ! ,
                        Doesn't affect the spinning of the shaft ? ,
                        The propeller shaft does not rotate in a bronze bush ? ,
                        If YES is OK , if NOT It maybe act like a file on the interior surface of the nose cone during spinning .
                        Just a thought .

                        MARIUS

                        Comment

                        • eckloss
                          • Nov 2003
                          • 1196

                          #132
                          Re: Matt Thor 60" 1/72 Scale Akula II

                          A very good thought that got past me. I may have to put the threaded section into another tube.

                          e.

                          Comment

                          • profesorul
                            Junior Member
                            • Apr 2014
                            • 106

                            #133
                            Re: Matt Thor 60" 1/72 Scale Akula II

                            I think is a good ideea .
                            I believe a smooth surface on rotation in close contact to another doesn't hurt but that rough may affect .
                            Don't take my words for granted but is better to see the other opinions .

                            MARIUS

                            Comment

                            • eckloss
                              • Nov 2003
                              • 1196

                              #134
                              Re: Matt Thor 60" 1/72 Scale Akula II

                              Marius,

                              I always welcome feedback. Good or bad. It's usually very helpful.

                              e.

                              Comment

                              • profesorul
                                Junior Member
                                • Apr 2014
                                • 106

                                #135
                                Re: Matt Thor 60" 1/72 Scale Akula II

                                @ eckloss ,

                                What material you used as putty ? ,
                                What is called / where did you buy ? ,
                                I saw that you were very generous with the amount applied ,
                                How is sand ? ,

                                MARIUS

                                Comment

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