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Sketchup offset corner Loop irregularity

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  • J Offline
    jackg00
    last edited by 11 Aug 2019, 16:03

    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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    • D Offline
      Dave R
      last edited by 11 Aug 2019, 16:14

      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 12 Aug 2019, 20:43

        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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        • D Offline
          Dave R
          last edited by 13 Aug 2019, 01:34

          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 13 Aug 2019, 10:27

            Thanks again.

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


            Pro: Error


            Make: Correct

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            • D Offline
              Dave R
              last edited by 13 Aug 2019, 11:52

              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 13 Aug 2019, 13:26

                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 14 Aug 2019, 12:41

                  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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