Grasshopper Engine

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Grasshopper Engine

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  • #110486
    Kevin Norman
    Participant
      @kevinnorman48306

      Does anyone know where I can obtain castings for the Grasshopper Engine by Sydney Owen, I know that Brunell do a similar engine but I do not really want to go down that path.

      Kevin

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      #3163
      Kevin Norman
      Participant
        @kevinnorman48306
        #110489
        David Clark 13
        Participant
          @davidclark13

          Hi Kevin

          Why don't you talk to Grahame?

          He may have it in stock.

          Give him a chance, see if you can do a deal.

          regards David

          #110492
          JasonB
          Moderator
            @jasonb

            How similar do you want it to be?

            Bruce engineering do the Easton & Anderson that Anthony Mound described

            Stuart Models also do a grasshopper

            Or you could just make it from scratch possibly substituting a cylinder and flywheel casting from one of the other beam engines that Reeves do. I'm well on my way to completing a scratch built E&A at double the size of teh bruce offering with a lot more detail added, see here

            J

            Edited By JasonB on 30/01/2013 13:01:47

            #110495
            Kevin Norman
            Participant
              @kevinnorman48306

              Thanks for your answers,

              I already have the drawings for the Syd Owen Grasshopper Engine and the two that have been mentioned from Bruce eng & Brunell do not fit the bill.

              My question was does anyone know of suppliers of castings for this particular engine , if not I have found a suitable flywheel and would machine the rest of the components from solid.

              Kevin

              #110496
              JasonB
              Moderator
                @jasonb

                I've never seen castings available but they may have been in the sixtys when the article was writen

                J

                #110497
                Ian P
                Participant
                  @ianp

                  Kevin

                  Sorry I cannot help you find an answer but I think David C has already mentioned the name of a potential supplier, he replied just few minutes after you first posed the question

                  I must admit that its not a supplier I know of, so you will have to Google it (or as DC again)

                  Ian

                  #110498
                  Kevin Norman
                  Participant
                    @kevinnorman48306

                    Thanks for your answer Ian , the supplier that David mentioned was Brunell and the Grasshopper Engine they do is not what I require.

                    Kevin

                    #110500
                    Ian P
                    Participant
                      @ianp

                      My reply was meant as a dig at DC!

                      I was not sure whether he was being ultra neutral as a moderator (in that he did not show any bias to any one supplier), but also, his reply meant absolutely nothing to anybody that did not know anybody called Grahame.

                      I know two people called Grahame but niether of them knows anything about casting, on the other hand one of them does go fishing,

                      Ian

                      #110502
                      David Clark 13
                      Participant
                        @davidclark13

                        Hi Ian

                        I misunderstood.

                        I thought you did not want to use Brunel for reasons posted on another thread.

                        I did not realise the engine was not what you want.

                        One of the Model Engineer contributors made it from the solid + a flywheel casting I think.

                        I think he wrote it up in ME but not dead sure.

                        That engine was an update of one published in ME back in the late40s, early 50s I believe.

                        It was also originally metric.

                        regards David

                        #110508
                        JasonB
                        Moderator
                          @jasonb

                          Would that be the one by A. Ebeltoft from March 1949? I have the drawings for that which are indeed in metric. Kevin, PM me if you want a copy.

                          Looks to be quite doable from solid and possibly a 5" Stuart Flywheel, bit on the small side for me but doubled up with a 10" wheel would be nice.

                          J

                          #110509
                          David Clark 13
                          Participant
                            @davidclark13

                            Hi Jason

                            I think that is the one.

                            regards david

                            #110515
                            Kevin Norman
                            Participant
                              @kevinnorman48306

                              The original design was by Ebeltoft but the drawings that I have are for the one serialised in ME Nov -Dec 1965 , I have the extracts from these issues.

                              The size of the engine is 13" long x 13" high x 61/2" wide and has 8 1/4" diam flywheel.

                              Kevin

                              #110569
                              JasonB
                              Moderator
                                @jasonb

                                Happened to be looking at Hit & miss engines and remembered that Canadian Model Engineering do a Grasshopper that is a dead ringer for the Owen one but looks to have been scaled up 50%. from the earlyer design, I had assumed they were the same size

                                 

                                Edited By JasonB on 31/01/2013 16:42:42

                                #110572
                                Jo
                                Participant
                                  @jo

                                  All the dimensions of that Canadian Grasshopper match the 1965 Sydney Owen design.

                                  Jo

                                  #110574
                                  JasonB
                                  Moderator
                                    @jasonb

                                    Thanks Jo, another one to add to the collection?

                                    J

                                    #110575
                                    Kevin Norman
                                    Participant
                                      @kevinnorman48306

                                      Thanks Jason,

                                      It matches the Syd Owen one to a tee , I will e-mail Canadian for more details.

                                      By the way what size of boiler would I need to power this size of engine?

                                      Kevin

                                      #110577
                                      JasonB
                                      Moderator
                                        @jasonb

                                        Probably 4-5" dia the capacity is largish but hopefully it won't want too much steam as it should be quite slow running.

                                        I have heard that their Hit & miss castings are good quality so the same should apply to the steam engines.

                                        Make sure you post some pictures of progress.

                                        #110578
                                        Jo
                                        Participant
                                          @jo

                                          Jason,

                                          I am still trying to be good and not buy any more castings. I already have my eye on something very sexy to add to my collection, something that I have no doubt will be both challenging and I anticipate will find very rewarding wink 2.

                                          Jo

                                           

                                          Edited By Jo on 31/01/2013 18:53:50

                                          #110579
                                          Kevin Norman
                                          Participant
                                            @kevinnorman48306

                                            Thanks Jason, my GLR 4" vertical should be OK then.

                                            Kevin

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