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    Trying to draw an elliptical cone

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    • frascatiF Offline
      frascati
      last edited by frascati

      Ok

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      • Dave RD Offline
        Dave R
        last edited by Dave R

        @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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        • frascatiF Offline
          frascati
          last edited by frascati

          Ok

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          • Rich O BrienR Offline
            Rich O Brien Moderator
            last edited by

            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 πŸ“–

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            • frascatiF Offline
              frascati
              last edited by

              ...but crabs sometimes repurpose shells

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              • frascatiF Offline
                frascati
                last edited by

                @frascati said:

                ...but crabs sometimes swap shells

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                • frascatiF Offline
                  frascati
                  last edited by frascati

                  Ok

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                  • frascatiF Offline
                    frascati
                    last edited by frascati

                    I see

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                    • frascatiF Offline
                      frascati
                      last edited by frascati

                      Thank you

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                      • Rich O BrienR Offline
                        Rich O Brien Moderator
                        last edited by

                        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 πŸ“–

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                        • frascatiF Offline
                          frascati
                          last edited by frascati

                          Ok

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                          • BoxB Offline
                            Box
                            last edited by Box

                            Too many straws.

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                            • frascatiF Offline
                              frascati
                              last edited by frascati

                              Ok

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                              • gullfoG Offline
                                gullfo
                                last edited by

                                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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                                • frascatiF Offline
                                  frascati
                                  last edited by frascati

                                  Ok

                                  1 Reply Last reply Reply Quote 0
                                  • BoxB Offline
                                    Box
                                    last edited by

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

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                                    • frascatiF Offline
                                      frascati
                                      last edited by frascati

                                      Ok

                                      1 Reply Last reply Reply Quote 0
                                      • Rich O BrienR Offline
                                        Rich O Brien Moderator
                                        last edited by

                                        @unknownuser said:

                                        But I thought I'd try an elliptical horn rather than round. I had no idea I was opening a new can of worms

                                        The worm is the native only approach. Since SU is primarily a conceptual design tool and you require some level of accuracy its supported via extensibility.

                                        The core can't do it but it can be done.

                                        Download the free D'oh Book for SketchUp πŸ“–

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                                        • panixiaP Offline
                                          panixia
                                          last edited by

                                          @frascati said:

                                          "Rich showed you a native way to do it."

                                          "Smoove has a falloff...."

                                          I need to go back and change my "intermediate" level of understanding to "beginner"

                                          "Smoove" is a member here? And a "falloff" is a what? Do the four images he posted suffice as a "tutorial"?

                                          Not sure why you are so rude, nobody is in owe of doing turorials for you.
                                          By the way what Rich said is more than enough, those are the only (pretty self explainatory) tools to attempt a similar shape in vanilla Sketchup.
                                          As already said, is pointless to try to model this kind of shapes using only native tools.
                                          Here's my 15 minutes draft using QFT/VT2/SubD.

                                          SubDSpeaker.JPG


                                          SubD_Speaker.skp

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                                          • frascatiF Offline
                                            frascati
                                            last edited by

                                            It was actually a very mild RE-action to being confidently assured that I'd been "shown" the way to do it already.

                                            You considered my response rude? Really? You need to get out of the house more. I absolutely take offense to being called rude when my conduct does not merit it.

                                            You have offered the initial rudeness here. Please refrain from comment in any further topics I submit.

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