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    Axis definition - blue first???

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    • Dave RD Offline
      Dave R
      last edited by

      Why is it important to you to define the Z-axis first?

      Etaoin Shrdlu

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      (THERE'S NO PLACE LIKE)

      G28 X0.0 Y0.0 Z0.0

      M30

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      • dukejazzD Offline
        dukejazz
        last edited by

        HI

        This may help

        Right click axes - select move
        in rotation box -rotate green axes - 90 deg +-

        now red axes is now blue

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        • dukejazzD Offline
          dukejazz
          last edited by

          method 2

          Use circle tool about axes of the line and follow me to end point to make perpendicular surfface plane

          Then by using the axes tool on plane, red and green from c-point to plane edge gives a define a "BLUE axes (vector of the line)"

          earse planial box

          done

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          • artmusicstudioA Offline
            artmusicstudio
            last edited by

            @dave r said:

            Why is it important to you to define the Z-axis first?

            hi, when a single lone must be the direction' of the height vector fot the temp. axis system for drawing directly a surface in an exact 90 deg. to this line. ....definied withou any further steps or workarounds
            stan

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            • artmusicstudioA Offline
              artmusicstudio
              last edited by

              @dukejazz said:

              method 2

              Use circle tool about axes of the line and follow me to end point to make perpendicular surfface plane

              Then by using the axes tool on plane, red and green from c-point to plane edge gives a define a "BLUE axes (vector of the line)"

              earse planial box

              done

              hi, thanx, a know a lot of workarounds, but was looking for direct one step axis definition.

              goal: one line in any 3d angle / define exis , where blue is the vector of the line / drawing a surface in 90 deg. to the line vector

              stan

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              • Dave RD Offline
                Dave R
                last edited by

                Sorry. I don't follow what you wrote and I still don't see why you need the blue axis direction first. In SketchUp the blue axis is the Z direction. That's just the way it is.

                Etaoin Shrdlu

                %

                (THERE'S NO PLACE LIKE)

                G28 X0.0 Y0.0 Z0.0

                M30

                %

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                • Dave RD Offline
                  Dave R
                  last edited by

                  I understand changing the axes for that sort of thing but what's so important about the blue axis. In fact, if you're just using it for alignment, what difference does the color make? Do what you need to do and reset the axes to the model's origin and move on. You still haven't explained why the blue (z-axis) should come first.

                  In over 8 years of using SketchUp, I've never found a need to move the model axes although I know it can be done. I've always found other methods to create those perpendiculars.

                  Etaoin Shrdlu

                  %

                  (THERE'S NO PLACE LIKE)

                  G28 X0.0 Y0.0 Z0.0

                  M30

                  %

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                  • TIGT Offline
                    TIG Moderator
                    last edited by

                    To draw a new-line at right angles to some other line that is drawn at-any-old-orientation...

                    Line tool, pick a start point.
                    Hover the cursor over the line so that Sketchup takes the hint that that line is somehow important in this process, move so the alignment of the start-point and the cursor is approximately parallel to the line, the rubber-band should go magenta.
                    This shows that if you were to click now the new0line would be parallel to the other line.
                    You can hold Shift down to lock to that magenta direction.
                    However, you want to be at right-angles not parallel !
                    So after hovering, instead of approximating to 'parallel' approximate to a 'right-angle'.
                    You will also get a magenta rubber-band.
                    Hold Shift to lock it and snap somewhere to make the end-point.
                    You now have a new-line that is at right angles to the original.

                    Alternatively, use the Protractor tool clicked onto the line and click the first point along the line then swing the new point at 90 degrees, taking either the 90 default step or typing in 90; now you have a guideline that is at 90 degrees to the line.
                    The Protractor's initial orientation will default to Red or Green or Blue depending on what is most visible 'axis' in the view, or to 'Black' when you hovered over any non-axial face; you can lock it to any of these by holding Shift until you do the first click which then fixes it onto the line at that orientation.

                    There are several other ways to get lines that are parallel and/or perpendicular to edges or faces... it depends on your starting geometry, and desired outcome etc...

                    TIG

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                    • sdmitchS Offline
                      sdmitch
                      last edited by

                      Here is a "TIG" one liner that will add a couple of guide lines to the selected edge and allow you to redefine the axes in two clicks.

                      m=Sketchup.active_model;e=m.active_entities;s=m.selection;l=s.first;p,v=l.line;x,y,z=v.axes;e.add_cline(p,x);e.add_cline(p,y);Sketchup.send_action "selectAxisTool;"
                      

                      Nothing is worthless, it can always be used as a bad example.

                      http://sdmitch.blogspot.com/

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                      • dukejazzD Offline
                        dukejazz
                        last edited by

                        One last try, this may be something near what you want or just be a another work around

                        The inner working of axes tool
                        pic_0024.jpg

                        I just leaned this today about axes tool, iso view, gives a perpendicular alinement.(cool). Help you to set red axes in step 1

                        Correct step 2: I sorry not a front view but a ground view of axis (one axis in front of other) . Rotate axes by orbit tool, the green axis into the red at ground level.

                        This help you move the green and blue axis in step 3

                        Movie_0003.gif

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