Page 55 - Engineering drawing from first principles using AutoCAD
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48   Engineering drawinq [rom first principles

                 Select obj ects: Other corner: 30 found
                 Select obj ects :
                 Base point or displacement:

                 For example, click on the centre point of the RIO radius and the command line reads

                 Base point or displacement: second point of displacement:
                 Move the construction to your required new position, click and press <Enter>. If you are
                 now uncertain quite where this will finally be, remember that you can always change it
                 again an unlimited number of times, but choose one of the main lines on the grid. Use
                 your grid to position the other views with the dimensioned drawing centrally at the top,
                 as shown in the given figure.
                 These manipulations are a necessary part of the preparation of drawings and illustrations
                 for use in desktop publishing applications.



                      R20










                      R16


                                                          R15





                                               o   0
                                               (0  v






















                                  CD                                ®



                 Figure 2.21
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