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    Making a sash window profile from image?

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    • M Offline
      mikedd
      last edited by

      What is the best way to do this?

      I want to make a profile of a sash window from an image. In the end I want to make a mockup sash window.

      This is just the sash and not the whole outer frame. I'm making a mockup advertisement for supplying and fitting new sashes in place of rotted/broken sash windows.

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      • Dave RD Offline
        Dave R
        last edited by

        What's the image? Is it the whole window? Is it a line drawing, photo,...? Depending on exactly what info you have, you might be able to import the image for Match Photo and start from there. You might import the image as an image and trace it. Sometimes I'll import an image as an image and just set it up in the background of the model space so I can use it for reference without having to look away from the screen.

        Etaoin Shrdlu

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        • pbacotP Offline
          pbacot
          last edited by

          a recent example of fine work: http://sketchucation.com/forums/viewtopic.php?f=81%26amp;t=55419

          MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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          • pbacotP Offline
            pbacot
            last edited by

            Or you might have a CAD drawing that you can import as SU edges. If you are not interested in the internal parts, clean up the CAD (section) drawing before or after import to just show the outer skin. Create a face and extrude.

            MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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            • M Offline
              mikedd
              last edited by

              @dave r said:

              What's the image? Is it the whole window? Is it a line drawing, photo,...? Depending on exactly what info you have, you might be able to import the image for Match Photo and start from there. You might import the image as an image and trace it. Sometimes I'll import an image as an image and just set it up in the background of the model space so I can use it for reference without having to look away from the screen.

              Yes Dave, tracing it, how would I do that?

              http://www.freudtools.com/images/product/windowsachdet.jpg

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              • Dave RD Offline
                Dave R
                last edited by

                Import the image as an image--set that in the Import window. Trace the edges as needed until you close the face. Then you can extrude it. I've shown how to do it in several tutorials. Here's one. I have to run but there are more I can link to later.

                Etaoin Shrdlu

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                • pilouP Offline
                  pilou
                  last edited by

                  @unknownuser said:

                  how would I do that?

                  Arc Tool ?

                  Frenchy Pilou
                  Is beautiful that please without concept!
                  My Little site :)

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                  • M Offline
                    mikedd
                    last edited by

                    trace.JPG

                    Thank you that was a lot easier and faster than I expected.

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                    • F Offline
                      Futurepast
                      last edited by

                      here's a few more moldings you might want in the future.


                      MouldingProfile.skp

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                      • Dave RD Offline
                        Dave R
                        last edited by

                        Mike, I'm glad that worked out for you. Out of curiosity, how many segments did you use for the cyma curve in your molding profile?

                        Etaoin Shrdlu

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                        • M Offline
                          mikedd
                          last edited by

                          @dave r said:

                          Mike, I'm glad that worked out for you. Out of curiosity, how many segments did you use for the cyma curve in your molding profile?

                          I bent the arc twice.

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                          • M Offline
                            mikedd
                            last edited by

                            @futurepast said:

                            here's a few more moldings you might want in the future.

                            Brilliant, thank you

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                            • Dave RD Offline
                              Dave R
                              last edited by

                              @mikedd said:

                              @dave r said:

                              Mike, I'm glad that worked out for you. Out of curiosity, how many segments did you use for the cyma curve in your molding profile?

                              I bent the arc twice.

                              πŸ˜• Huh?

                              Etaoin Shrdlu

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                              • BoxB Offline
                                Box
                                last edited by

                                My guess is he used two arcs of default segments therefore the complete curve is 24 segments.
                                Ooops and a flat in the middle so 25.

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                                • Dave RD Offline
                                  Dave R
                                  last edited by

                                  That would be my assumption, too. But you know what assume does. πŸ˜‰

                                  So 25 segments for that tiny curve is probably about twice what you need for modeling.

                                  Etaoin Shrdlu

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                                  • M Offline
                                    mikedd
                                    last edited by

                                    @dave r said:

                                    That would be my assumption, too. But you know what assume does. πŸ˜‰

                                    So 25 segments for that tiny curve is probably about twice what you need for modeling.

                                    You've got me lost, I don't have a clue what you are talking about.

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                                    • Dave RD Offline
                                      Dave R
                                      last edited by

                                      Perhaps you've noticed that SketchUp represents arcs and circles with a series of short line segments. By default an Arc is drawn with 12 segments and a circle with 24. For small arcs such as the ones in your molding profile, 12 segments is overkill. The more segments you have in curves, the more faces you'll have when you extrude the profile. As entity count increases, so does file size. There's little point in using more segments than needed to get the job done. In this image the molding on the left is made with 12 segments in each arc while the one on the right uses only 6. There's no noticeable difference but the one on the right would result in a smaller file because the entity count is lower.
                                      trace.png

                                      When you use high segment counts for small details, the faces will necessarily be smaller. The small faces can be a problem and result in missing areas.

                                      Save the larger number of sides for things like round table tops and other large curves pieces.

                                      Etaoin Shrdlu

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                                      • cottyC Offline
                                        cotty
                                        last edited by

                                        You can control the difference if you turn on hidden geometry (view -> hidden geometry).


                                        followmearcs.jpg

                                        my SketchUp gallery

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                                        • M Offline
                                          mikedd
                                          last edited by

                                          @cotty said:

                                          You can control the difference if you turn on hidden geometry (view -> hidden geometry).

                                          I have turned on hidden geometry but how do I edit to how many segments?

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                                          • pbacotP Offline
                                            pbacot
                                            last edited by

                                            You can edit an arc's segment in the "Entity info" window BEFORE you extrude it.

                                            MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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