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    Efficient spaceframe?

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    • john2J Offline
      john2
      last edited by

      I’m creating a spaceframe [made up of cube units] in SketchUp. I’ve created one component of a square frame and array it to get the desired mass. But in doing such activity, I increase the mass of spaceframe. This happens because AD and CB overlap each other. Only CB member is required in making as AD is just a duplicate. Is there any dynamic component available [only a cube wireframe.] that makes an efficient spaceframe, without increasing the poly count in model?


      spaceframe.jpg

      Sketchup Make 2017 (64-bit), Vray 4.0 , Windows 10 – 64 bit, corei7-8750H, 16GB RAM, Nvidia GeForce GTX 1050Ti 4GB

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      • mitcorbM Offline
        mitcorb
        last edited by

        Hi:
        Here is a link to at least investigate:
        http://www.google.com/url?sa=t&rct=j&q=sketchup%20spaceframe%20dynamic%20component&source=web&cd=1&ved=0CC0QFjAA&url=http%3A%2F%2Fsketchup.google.com%2F3dwarehouse%2Fdetails%3Fmid%3Dc3476a54d439b9ac1b70317901324056&ei=CVKpTqvmCcrIsQKrt9WnDw&usg=AFQjCNFv7conFox-9A6a1wv2KJGcW4cnhw&cad=rja

        I did not check beyond the google listing.

        I take the slow, deliberate approach in my aimless wandering.

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        • TIGT Offline
          TIG Moderator
          last edited by

          Rather than think of this as 'Cube units', why not think of it as 'Nodes' - which I think is actually easier, and has fewer 'types' to resolve...
          There are then 3 sorts of Nodes.

          Let's call then "Corner/Perimeter/Middle".

          A Corner Node [L] has 1 post and 2 half-top rails and 2 half-bottom rails [at right-angles to each other]; these form all 90 degree external-corners.

          A Perimeter Node [T] has 1 post and 3 half-top rails and 3 half-bottom rails; these always attach to Corner Nodes or other Perimeter Nodes, they always that the 2nd half-rails facing into the assembly.

          has 1 post and 4 half-top rails and 4 half-bottom rails; these always attach to Perimeter Nodes or other Middle Nodes; Middle-nodes also form internal 90 corners.

          If you make the ends of the half-rails with hidden edges they will join together seamlessly...
          You can rotate the corner/perimeter nodes about the vertical axis by 90 degree increments to suit and the middle-nodes will always snap together properly...Capture.PNG

          TIG

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          • Dave RD Offline
            Dave R
            last edited by

            TIG's method works extremely well. I've used it to create elements for various grilles. I can make a grille of any dimension quite rapidly with just the three components.


            http://farm7.static.flickr.com/6023/5979597868_808f4b6fcc.jpg

            Etaoin Shrdlu

            %

            (THERE'S NO PLACE LIKE)

            G28 X0.0 Y0.0 Z0.0

            M30

            %

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