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    Elliptic Gears

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    • Chris FullmerC Offline
      Chris Fullmer
      last edited by

      I'm going to guess that if the involute gear plugin does not support elliptic gears, then there probably is no plugin for it.

      You could contact CADalog and see if they'll incorporate it though.

      Lately you've been tan, suspicious for the winter.
      All my Plugins I've written

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      • pilouP Offline
        pilou
        last edited by

        there is link inside the text
        Don't know if it's free and the export format

        Frenchy Pilou
        Is beautiful that please without concept!
        My Little site :)

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        • E Offline
          enhydra
          last edited by

          Hi

          @unknownuser said:

          there is link inside the text
          Don't know if it's free and the export format

          I know this tool. It seems promising. πŸ˜„ But the guy has not decided yet, how he wants to publish it. By now there is no export format.

          Regards
          Kurt

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          • gillesG Offline
            gilles
            last edited by

            Component Stringer could help.

            http://sketchucation.com/forums/viewtopic.php?f=79&t=48477&hilit=component+stringer#p435378

            " c'est curieux chez les marins ce besoin de faire des phrases "

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            • GaieusG Offline
              Gaieus
              last edited by

              @gilles said:

              Component Stringer could help.

              http://sketchucation.com/forums/viewtopic.php?f=79&t=48477&hilit=component+stringer#p435378

              Component stringer AND Ddider's ellipse plugin: http://rhin.crai.archi.fr/rld/plugin_details.php?id=124
              as it makes ellipses with equal segments.

              Gai...

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              • Jean LemireJ Offline
                Jean Lemire
                last edited by

                Hi enhydra, hi folks.

                In your image, you show two small circular gears meshed with a larger elliptical one.

                For this to work, you need a way to accomodate changes in axis distance.

                Normally, elliptical gears are meshed with other elliptical gears.

                See this web page for some formula:

                http://www.technicaljournalsonline.com/ijaers/VOL%20II/IJAERS%20VOL%20II%20ISSUE%20I%20%20OCTBER%20DECEMBER%202012/225.pdf

                You will see that defining the exact shape for the teeth is not so simple.

                Just ideas.

                Jean (Johnny) Lemire from Repentigny, Quebec, Canada.

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                • pilouP Offline
                  pilou
                  last edited by

                  Even not elliptical gears are no so simple too πŸ˜„
                  38 parameters! πŸ€“


                  gears.jpg

                  Frenchy Pilou
                  Is beautiful that please without concept!
                  My Little site :)

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                  • Jean LemireJ Offline
                    Jean Lemire
                    last edited by

                    Hi Pilou, hi folks.

                    You are right. Imagine with square gears. Yes, they exist.

                    See this page:

                    Link Preview Image
                    Non-circular gear - Wikipedia

                    favicon

                    (en.wikipedia.org)

                    And this one for even more strange looking shapes for gears. Look for the fish shaped one at mid length. Really funny.

                    Just ideas.

                    Jean (Johnny) Lemire from Repentigny, Quebec, Canada.

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                    • E Offline
                      enhydra
                      last edited by

                      @gilles said:

                      Component Stringer could help.
                      http://sketchucation.com/forums/viewtopic.php?f=79&t=48477&hilit=component+stringer#p435378

                      Thanks for replying πŸ˜„

                      @gilles & by Gaieus: I will take a look at these two plugins. Hope they do the job. πŸ‘

                      @Jean Lemire:

                      @unknownuser said:

                      you need a way to accomodate changes in axis distance

                      Yes, I am aware of that. πŸ˜‰ Take a look at http://skfb.ly/5k3ecba. A rubber band will press the smaller gear towards the elliptic gear.
                      You get the point: Dealing with gears is quite challenging. But

                      @Pilou
                      I am not bothered by all of the 38 parameters. πŸ˜‰

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                      • pilouP Offline
                        pilou
                        last edited by

                        Terrific gears indeed!
                        And crazzy wood clocks 😲

                        Frenchy Pilou
                        Is beautiful that please without concept!
                        My Little site :)

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                        • E Offline
                          enhydra
                          last edited by

                          @unknownuser said:

                          Terrific gears indeed!
                          And crazzy wood clocks 😲

                          I wish I had a laser cutter in the basement. πŸ˜‰

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                          • PixeroP Offline
                            Pixero
                            last edited by

                            Kind of reminds me of the intro to the old Swedish TV show Tekniskt Magasin.

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                            • D Offline
                              driven
                              last edited by

                              you could reverse engineer this one...
                              11mb and v6
                              https://dl.dropbox.com/u/25114184/Clark_67.skp

                              edit forgot to add superelipse plugin may help http://sketchucation.com/forums/viewtopic.php?t=29061

                              learn from the mistakes of others, you may not live long enough to make them all yourself...

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                              • E Offline
                                enhydra
                                last edited by

                                Unfortunately the plugin "Compnent Stringer" won't work for this kind of problem. Especially if you are interessted in a proper solution. For makers and tinkerers the plugin and also my way are good enough. πŸ˜‰

                                Look at: http://www.thingiverse.com/thing;57771

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                                • gillesG Offline
                                  gilles
                                  last edited by

                                  For those who enjoy fine mechanics:

                                  http://kmoddl.library.cornell.edu/model.php?m=689&movie=hide


                                  1357.jpg

                                  " c'est curieux chez les marins ce besoin de faire des phrases "

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