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    Completely lost on how to create this orb

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    • massimoM Offline
      massimo Moderator
      last edited by

      I think that the main problem with those kind of lamp is that the elements are not coplanar, but are kinda twisted each other. See David Trubridge designs for example.

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      • olisheaO Offline
        olishea
        last edited by

        Seems to be just two tessellations making up all the components of the lamp. I would use Tool on Surface to a sphere to create the initial curved components then copy as an array around the sphere. At this point you could also add the twisted ends so they overlap) Here you could move the components over each other so they aren't co planar and then add the little rivets. It's quite simple if you break it down but tricky in execution.

        oli

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        • TIGT Offline
          TIG Moderator
          last edited by

          Make a Geodesic sphere.
          MultipleFaceOffset.
          Erase all faces with <=4 edges...
          JointPushPull.
          Use Artisan to sub-divide/smooth it...

          Choose the 'sphere' type that gives the 'hole pattern' desired...
          Here's one I threw together is a minute or two...GeoLamp.PNG

          TIG

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          • pbacotP Offline
            pbacot
            last edited by

            Nice, TIG. I kept working along those lines myself but it would either crash the computer or look like crap... I will be interested to use exactly the steps you have. I perhaps made the mistake to create my first sphere with Artisan. And I used Lattice maker. I wonder if some creasing will give sharp edged cut-outs?

            MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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            • TIGT Offline
              TIG Moderator
              last edited by

              LatticeMaker makes the parts as ovelapping frames which can't be easily made solid - even with SolidSolver.
              Windowizer4 has similar limitations.

              Here's my workflow.
              Make a Geodesic sphere == I used that plugin, octahedron, 2 iterations, 1m radius.
              Edited the 6 small 'sqaures' into one face...
              MultipleFaceOffset == I used that plugin, 50mm offset.
              Erase all faces with <=4 edges... I selected all inside the group and wrote a one-liner in the Ruby Console:
              Sketchup.active_model.selection.each{|e|e.erase! if e.is_a?(Sketchup::Face)&&e.edges.length<=4}
              JointPushPull == used that with 50mm offset and keeping original faces, no partitions. Makes result as a 'solid'...
              Oriented the faces...
              Used Artisan to sub-divide/smooth it...

              TIG

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              • N Offline
                nickchun
                last edited by

                It's basically this shape(roughly, I haven't rounded all the corners) UV wrapped around around a sphere. The problem is its 5 sided. Any way to do that?


                Capture.JPG

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                • TIGT Offline
                  TIG Moderator
                  last edited by

                  That's why it's best to start with some kind of Geodesic sphere...
                  Mapping an image onto a sphere is going to give you brain-ache... πŸ˜•

                  TIG

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                  • M Offline
                    MartinK
                    last edited by

                    Here's an attempt. I started with a geodesic sphere from the warehouse. I don't have time to go through the steps, but I remade it with components. The model is attached if you want to explore the parts. It's not perfect and might not even be accurate, but it was a fun experiment. Hope it helps.
                    Test1b.jpg


                    Test1b.skp

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                    • M Offline
                      Mra
                      last edited by

                      Wow, thank you so much for the amazing responses everyone. All these techniques are such good ideas, I'll try and build this myself using the different methods mentioned above as well to learn more complex items in SketchUp!

                      Much appreciated! πŸ‘

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                      • gillesG Offline
                        gilles
                        last edited by

                        I enjoy geodesic, see this one:


                        orb.png


                        orb_V6.skp

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

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                        • M Offline
                          MartinK
                          last edited by

                          Very nice Gilles πŸ‘

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                          • cottyC Offline
                            cotty
                            last edited by

                            @gilles said:

                            I enjoy geodesic, see this one

                            WOW! I can't resist to let it jump πŸ˜‰


                            gilles_orb_jump.jpg

                            my SketchUp gallery

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                            • M Offline
                              Mra
                              last edited by

                              @gilles said:

                              I enjoy geodesic, see this one:

                              Very clever, just shows how capable SketchUp is in the right hands.

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                              • TaffGochT Offline
                                TaffGoch
                                last edited by

                                Good examples, above...

                                I've (thus far) modeled the basic geometry of the pentagonal components.

                                The pendant lamp geometry is based on a 3v, class-I geodesic sphere.

                                (Contributors have been quick to jump on this question. I almost missed seeing it, while lurking.) 😳

                                -Taff


                                Pendant lamp; 3v.png

                                "Information is not knowledge." -- Albert Einstein

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                                • TaffGochT Offline
                                  TaffGoch
                                  last edited by

                                  I produced the curved-arm portions, simply by radially-copying rectangles along an arc between the geodesic vertices.

                                  Here's a detail, showing "hidden geometry" (lines.)

                                  -Taff


                                  Pendant lamp; 3v, detail.png

                                  "Information is not knowledge." -- Albert Einstein

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                                  • TaffGochT Offline
                                    TaffGoch
                                    last edited by

                                    Not quite as "spindly" as the real lamp....


                                    Pendant lamp.png


                                    Pendant lamp; 3v.skp

                                    "Information is not knowledge." -- Albert Einstein

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                                    • TaffGochT Offline
                                      TaffGoch
                                      last edited by

                                      Geodesic-based lamp spheres have, seemingly, been popular, over the past few years.

                                      Here's a sampling for your SketchUp modeling exercises:


                                      Geodesic lampshade.jpg


                                      tumblr_m9r5np3AnF1qavpd4.jpg


                                      KentBlazek-NexusKitset-2.jpg

                                      "Information is not knowledge." -- Albert Einstein

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