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Trying to draw an elliptical cone

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  • F Offline
    frascati
    last edited by frascati 19 Feb 2023, 19:46

    Trying to draw an elliptical cone

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    • D Offline
      Dave R
      last edited by 19 Feb 2023, 20:20

      @frascati said:

      Is there an elegant workaround without using a plugin?

      It depends on what version of SketchUp are you using. Please complete your forum profile with that information.

      Etaoin Shrdlu

      %

      (THERE'S NO PLACE LIKE)

      G28 X0.0 Y0.0 Z0.0

      M30

      %

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      • R Offline
        Rich O Brien Moderator
        last edited by 19 Feb 2023, 20:31

        Smoove has a falloff that could achieve such a result...

        https://i.imgur.com/6YPAfkb.png

        Here's a very basic example.

        Download the free D'oh Book for SketchUp

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        • F Offline
          frascati
          last edited by frascati 19 Feb 2023, 21:06

          Ok

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          • D Offline
            Dave R
            last edited by Dave R 19 Feb 2023, 21:09

            @frascati said:

            Really no way to do this natively in Sketchup?

            Rich showed you a native way to do it.

            Another non-extension way to do it would be to stitch the vertices together with the 2-point Arc and Line tools.

            The method I showed in that thread of using Follow Me and then scaling the large end to make an ellipse doesn't require any extensions.

            Etaoin Shrdlu

            %

            (THERE'S NO PLACE LIKE)

            G28 X0.0 Y0.0 Z0.0

            M30

            %

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            • F Offline
              frascati
              last edited by frascati 19 Feb 2023, 21:41

              Ok

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              • R Offline
                Rich O Brien Moderator
                last edited by 19 Feb 2023, 21:53

                Smoove is a tool under Sandbox

                Falloff is a linear decline in influence over distance

                Potatoes are not vegetables.

                Download the free D'oh Book for SketchUp

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                • F Offline
                  frascati
                  last edited by 19 Feb 2023, 23:31

                  ...but crabs sometimes repurpose shells

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                  • F Offline
                    frascati
                    last edited by 19 Feb 2023, 23:33

                    @frascati said:

                    ...but crabs sometimes swap shells

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                    • F Offline
                      frascati
                      last edited by frascati 19 Feb 2023, 23:37

                      Ok

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                      • F Offline
                        frascati
                        last edited by frascati 19 Feb 2023, 23:39

                        I see

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                        • F Offline
                          frascati
                          last edited by frascati 19 Feb 2023, 23:40

                          Thank you

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                          • R Offline
                            Rich O Brien Moderator
                            last edited by 20 Feb 2023, 00:00

                            https://i.imgur.com/2qStuJz.png

                            1. Draw the primitive divided circle
                            2. Scale from centre along an axis
                            3. Select the boundary edges and active Smoove. Set a value for your falloff
                            4. Position geometry and shade smooth

                            I can't give you precise values as I didn't do it to any particular size. So you may have experiment with your falloff values using Smoove.

                            Download the free D'oh Book for SketchUp

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                            • F Offline
                              frascati
                              last edited by frascati 20 Feb 2023, 01:27

                              Ok

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                              • BoxB Offline
                                Box
                                last edited by Box 20 Feb 2023, 01:30

                                Too many straws.

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                                • F Offline
                                  frascati
                                  last edited by frascati 20 Feb 2023, 02:52

                                  Ok

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                                  • gullfoG Offline
                                    gullfo
                                    last edited by 20 Feb 2023, 05:55

                                    it's a profile using an elliptical shape with follow me. all native tools.

                                    if you're trying to duplicate the HF drive on the speaker in your first post - Genelec uses a mathematical model to generate it, not drawing tools. when i model their speakers for recording studio designs, i use the profile and elliptical curve or the scaling method - which ever one looks "close enough" since i'm not actually making the speaker, just need it for size and rendering purposes.

                                    Glenn

                                    http://www.runnel.com

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                                    • F Offline
                                      frascati
                                      last edited by frascati 20 Feb 2023, 13:58

                                      Ok

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                                      • BoxB Offline
                                        Box
                                        last edited by 20 Feb 2023, 14:02

                                        Follow me on an ellipse will not produce the shape you want.

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                                        • F Offline
                                          frascati
                                          last edited by frascati 20 Feb 2023, 14:43

                                          Ok

                                          1 Reply Last reply Reply Quote 0
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