Those Eureka moments!

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Those Eureka moments!

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  • #36396
    Kimosubby Shipyards
    Participant
      @kimosubbyshipyards

      Hi Bob,

      now I'm all aglow, praise from the master indeed, thank you.

      Kim.

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      #36398
      Bob Abell 2
      Participant
        @bobabell2

        You`ve really excelled yourself, this Kimmo

        A quality job……..You could get a few orders for this type of fitting!

        Bob

        #36429
        Paul T
        Participant
          @pault84577

          Kim

          With Bobs approval you have got it made and the perfect subject for Dragons Den…..nip down to Ballasalla and rent an industrial unit in Balthane and start mass production, you can even take advantage of the funding that the island has for exporting manufactured products.

          Paul

          #36432
          Kimosubby Shipyards
          Participant
            @kimosubbyshipyards

            Paul,

            only one draw back, I copied another design, it took 2 hours to produce 40, and the originals cost £3.75 for a pack of 20 (although another site has them at £3 for 5).

            I'll get Bob to engineer a steam operated press to automate the system and then insist all modellers make at least one vintage style yacht per year, that should create a demand. Now to set about a patent before someone copies mine!

            Kim.

            #36434
            ashley needham
            Participant
              @ashleyneedham69188

              Hmmm…. those fittings look very much like the wire hooks used to hang curtains on to rings….bit of bending with thin nosed pliers…

              Ashley (has not researched this fact)

              #36435
              Kimosubby Shipyards
              Participant
                @kimosubbyshipyards

                Ashley,

                well done, that's exactly where the vintage yachters got them, though the shape was changed slightly. And yes, you can still get replica brass original ones in three sizes. The alteration is to flatten them and provide the dual loops for a rivet fixing – else some sewing is required.

                Kim.

                PS thin nosed pliers used to create the master, but getting identical ones meant creating the jig.

                #36455
                Bob Abell 2
                Participant
                  @bobabell2

                  A double whammy "Ureka Moment" today, boys!

                  I thought this idea up many years ago when building a 1/4 scale Piper Cub and was rewarded with an MFA motor set from one of the model aircraft magazines for suggesting it!

                  When you can`t get an elastic bound round something, like a giant Piper Cub fuz, I came up with the "S hook" idea……..See photo……..and an added bonus, is that you can add as many bands as you like for more clamping power!

                  Photo shows the "S hook" in action on the GE build

                  Lacky band-MB.jpg

                  What`s the other idea, Bob?…………Oh yes

                  You can get the bands for free!

                  The Postman drops them on the pavement, outside your front door!

                  Bob

                  #36457
                  Kimosubby Shipyards
                  Participant
                    @kimosubbyshipyards

                    Nice one Bob,

                    and our posties do the same thing BUT I collected them and decided to use them to hold a railing to a hull. Left them on for some weeks as was distracted to other jobs and the dam things stuck to the timber. The bands they use are red and, I've now found out, are bio-degradable, but it gives them an excuse to drop them all over!

                    Kim.

                    #36466
                    Bob Abell 2
                    Participant
                      @bobabell2

                      This "Ureka Moment" is a cracker!……….Hope you chaps like it and try it yourself?

                      orig chim.jpg

                      This is the original chimney, quite humble with no fancy top flange! It`s not very attractive and needs the treatment!

                      bung.jpg

                      Turned a bung to fit the flimsy chimney tube

                      set up.jpg

                      steady.jpg

                      Gripped the tube in the chuck, with the bung taking the strain

                      Fitted the three point steady. placed a length of brass bar in the tool post

                      Gave it all a good oiling…….And "SPUN" the chimney end over

                      job done.jpg

                      Job done………Quite easy when you`ve done a few!

                      finished.jpg

                      That`s better?

                      Got to confess, I was chuckling away to myself as I was doing this!

                      Bob

                      #36469
                      Paul T
                      Participant
                        @pault84577

                        Now your just showing off wink

                        #36471
                        Bob Abell 2
                        Participant
                          @bobabell2

                          That wasn`t showing off……It had to be done and I thoroughly enjoyed the challenge! It was great fun setting up and watching the tube end being formed

                          It was about time I made use of the three point steady

                          Bob

                          #36486
                          Ducky
                          Participant
                            @ducky

                            And here's another he made earlier for my Narra boat!

                            Duckie

                            Chimney finished

                            #36511
                            Bob Abell 2
                            Participant
                              @bobabell2

                              Some small moulded items in the Glasgow kit require sanding down to 1/16" and it`s awfully hard on the finger tips!

                              So I came up with this little sanding tool that captivates the moulding as it is sanded down, now it`s an absolute pleasure to use!

                              sanding tool.jpg

                              Bob

                              #36520
                              Paul T
                              Participant
                                @pault84577

                                Bob

                                Why didnt you use your milling machine?

                                Paul

                                #36521
                                Ducky
                                Participant
                                  @ducky

                                  Don't know how you do it for the price, a good Eureka moment though, how would you hold those tiny white metal fittings that come with most kits and require cleaning up with one of those brass brushs, get your thinking cap on again Bob

                                  Duckie

                                  #36557
                                  Bob Abell 2
                                  Participant
                                    @bobabell2

                                    Hello Duckie

                                    Been giving your request some thought lately and have come up with a sensible idea!

                                    You need to hold the casting in a claw and give it the woiks!…….And not your fingers!

                                    I would suggest, a tube and a wire claw device.

                                    Take two lengths of wire, bend them in the middle and push the wires up the tube. Bend the wire ends over to make a claw. At the bend end, inside the tube, fit a spring or elastic band.

                                    At the other end of the spring or elastic band, tie a length of cord.

                                    The cord emerges out at the bottom of the tube. Pull the cord and make a suit abell loop in it, to allow a pin to be pushed through the loop and maintain the tension

                                    How it works ( hopefully )…….Remove the pin…….Place casting in the claw……Pull cord…….Slide the pin in the cord loop and the casting is gripped!

                                    I hope you can follow all that blurr?

                                    Some bright spark will!

                                    Bob

                                    #36558
                                    Paul T
                                    Participant
                                      @pault84577

                                      Bob

                                      The claw is a nice idea but have you considered the merits of a Jewellers vice / pin vice or even the jaws of a drill chuck.

                                      enlightened

                                      #36559
                                      Bob Abell 2
                                      Participant
                                        @bobabell2

                                        I knew you would be lurking in the wings, Paul!

                                        I thought about a pin type vice, but for model boat castings, the claw shape is the winner!

                                        The claws can be bent to suit the casting too!

                                        Well?

                                        Bob

                                        #36564
                                        Paul T
                                        Participant
                                          @pault84577

                                          Bob

                                          You are an experienced engineer with years of problem solving expertise and I bow to your superior knowledge and practical experience. I would like to see the claw grip in action to see how you overcome the problem of slippage.

                                          Paul

                                          #36570
                                          Bob Abell 2
                                          Participant
                                            @bobabell2

                                            Hey, Paul

                                            You do realize that this was a conjectoral suggestion to grip any shape of casting so that it could be worked on, in the vice, for my good friend, Duckie………I don`t really know if it`s a good idea or not!

                                            But just for amusement only, I`ve lashed up a sample to get a feel for the job

                                            components.jpg

                                            The components parts…..

                                            Tube, needs to be thick wall for gripping in the vice

                                            Tension spring, needs to be powerful, with a loop at both ends

                                            Claw parts, strong piano wire……..(it`s a right swine to bend!)

                                            Strong cord for pulling the spring eye end down, to enable holding peg to maintain clamping pressure

                                            claw slots.jpg

                                            This was a great afterthought!

                                            Slots to equally space the claws and provide guidance

                                            spring end.jpg

                                            By a stroke of luck, when the spring was pulled to test the gripping power, the eye of the spring appeared and it was just right and ideal for the retaining peg

                                            hinge.jpg

                                            Sample odd shape in the claw

                                            boss.jpg

                                            This item looks well gripped?

                                            Anyway chaps, I`ve put my money where my mouth is, so to speak and proved that it is a feasible idea

                                            Come in, Paul

                                            Bob

                                            #36571
                                            Paul T
                                            Participant
                                              @pault84577

                                              Bob

                                              Just got in from the shed and have come up with this.

                                              handy-hand-grab-tool.jpg

                                              Very similar to your idea but not as strong in the gripping department.

                                              Paul

                                              #36572
                                              Bob Abell 2
                                              Participant
                                                @bobabell2

                                                Not a bad attempt and strangely similar in parts?

                                                Might be ok for picking up dimps!…..lol

                                                Bob

                                                #36579
                                                Ducky
                                                Participant
                                                  @ducky

                                                  Both good idea's guys, will try them out when I get back in the work room, doing 1.1 modelling at the moment with Son John.

                                                  #36602
                                                  Bob Abell 2
                                                  Participant
                                                    @bobabell2

                                                    Following Kimo`s super duper wire bending fixture, here`s mine…….A simple jig

                                                    We often have the need to make many repeat items and you can either use the "Knife and fork" method and rough it, or you can do it properly and make a jig, to ensure every part is identical

                                                    jig.jpg

                                                    The jig, with a hole drilled through a piece of metal with a datum edge on the right

                                                    insert wire.jpg

                                                    Insert a pre-bent length of wire into the hole

                                                    bend down.jpg

                                                    Bend the wire down firmly and square up with the pliers

                                                    made a few.jpg

                                                    The result and very pleasing too!

                                                    Bob

                                                    #36604
                                                    Ian Gardner
                                                    Participant
                                                      @iangardner62867

                                                      Bob, you should write a book! I'm serious- I bet modellers all over would find your ingenious solutions invaluable. I only hope I can remember some of them when the need arises. They are all of the 'why didn't I think of that?' variety- but of course we don't.

                                                      Alternately what about a column in MB? There used to be a handy tips article-we could photocopy them and put them in a file.

                                                      All the best…Ian

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