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    Sketchup offset corner Loop irregularity

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    • J Offline
      jackg00
      last edited by

      Hi Everyone.

      I have been using Sketchup Make for some time and I have recently downloaded a trial of Sketchup Pro, on Mac.

      I have noticed that there seems to be a bit of an anomaly between the 2 with offsetting. The problem has been happening across a lot of projects, I regularly get different geometry from tutorials.

      I have a simple example which highlights the problem. I copied the same shape from Pro to Make, its a 32s arc split in half, finished into a quarter circle shape.

      On Make no problem offsetting.

      On Pro it creates extra corner loops.

      (Pictures attached)

      Could someone let me know whether this is a setting, or something I may be doing, or potentially a bug.

      I would be grateful for any help. Thank you in advance.


      Make


      Pro

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      • Dave RD Offline
        Dave R
        last edited by

        I don't have any problem offsetting a simple pie shape in 2019.2.
        Screenshot - 8_11_2019 , 11_12_27 AM.png

        It looks like you have a short edge segment in the curve in your 2019 version that isn't there in the other one. How did you create that?
        Screenshot 2019-08-11 at 16.50.22.png

        Etaoin Shrdlu

        %

        (THERE'S NO PLACE LIKE)

        G28 X0.0 Y0.0 Z0.0

        M30

        %

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        • J Offline
          jackg00
          last edited by

          Thank you for picking this up Dave.

          I did:

          150cm line on red
          75cm line from the center on green
          arc from ends of 150cm line pulled out to 75cm - 32 segments
          delete half the arc
          offset

          Loops start to appear after around 6.5cm on pro. The same process on Make and loops never appear.

          As far as I can see the first segment is in the same place on both files, new files attached.


          Make


          Pro

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          • Dave RD Offline
            Dave R
            last edited by

            Upload the actual SKP file that gives you problems.

            Etaoin Shrdlu

            %

            (THERE'S NO PLACE LIKE)

            G28 X0.0 Y0.0 Z0.0

            M30

            %

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            • J Offline
              jackg00
              last edited by

              Thanks again.

              Attached is the Pro: Error and Make: No Error files


              Pro: Error


              Make: Correct

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              • Dave RD Offline
                Dave R
                last edited by

                What Pro version are you trialing? When I open the file called Corner Error it gives the message that it was created in SU2016.
                Screenshot - 8_13_2019 , 6_42_46 AM.png

                When I run Offset on your example on the left, it works just fine.
                Click on the picture if it doesn't animate.

                When I open your "correct" file, I get this.
                Screenshot - 8_13_2019 , 6_45_47 AM.png

                And Offset works fine there, too.
                Click

                Etaoin Shrdlu

                %

                (THERE'S NO PLACE LIKE)

                G28 X0.0 Y0.0 Z0.0

                M30

                %

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                • J Offline
                  jackg00
                  last edited by

                  You are exactly right.

                  I have downloaded the new version and all is fine. It seems it was a bug with the older version.

                  Thank you for your efforts.

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                  • S Offline
                    slbaumgartner
                    last edited by

                    Just for the record, there were indeed bugs in the offset tool in previous versions of SketchUp. They are much improved in SketchUp 2019.

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