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    Help with circles and arcs

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    • R Offline
      RaeleaR
      last edited by

      **Hi all, newbie here πŸ˜„
      There's something I don't understand with circles and arcs. I draw a logartmic spyral as shown in the pic below..
      http://www.etereaestudios.com/worksweb/nbyn/about/espiral.gif

      now, my problem is that I don't find the way tho join the single arcs to treat them as one..

      The same happens if I draw circles instead of arcs. In this case, after erasing the circles parts I dont need, it treats the resulting arcs as the singles 'sides' number I set for my circle.. hope it make a sense..
      Is there someone can help me?
      Thx**

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      • cottyC Offline
        cotty
        last edited by

        You can weld them together, search for weld plugin.

        my SketchUp gallery

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        • jgbJ Offline
          jgb
          last edited by

          Draw it as a set of 1/4 circle arcs as you depicted.
          Select all the arcs and explode the curves. This will give you defined endpoints.
          Make the whole thing a group.
          Turn on End points in the styles dialog.
          Then using a Biezier curve (plug-in tool), trace each endpoint in one go.

          The result will be a single smooth curve.


          jgb

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          • Dave RD Offline
            Dave R
            last edited by

            Just welding the arcs will make the curve the OP was looking for. Why the need for all the exploding and other extra work?

            Etaoin Shrdlu

            %

            (THERE'S NO PLACE LIKE)

            G28 X0.0 Y0.0 Z0.0

            M30

            %

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            • cottyC Offline
              cotty
              last edited by

              You can use the new arc tool to create the spiral and weld it afterwards...

              [screenr:n1v3bjmm]PtxN[/screenr:n1v3bjmm]

              my SketchUp gallery

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              • TIGT Offline
                TIG Moderator
                last edited by

                There are several tools that will reform a set of linked edges, arcs or curves into a single 'curve' entity.
                The original oldie 'weld' is available from Smustard.com [with several prompts as it processes the selection]
                Several other tools have something similar as part of a broader toolset...
                My own "TIG-weld" is available in the SCF PluginStore - it just does the one prompt-free 'welding' job on suitable preselected line/curve sets.
                http://sketchucation.com/pluginstore?pln=TIG-weld

                TIG

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