Page 287 - CITS - ED - Mechanical
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ENGINEERING DRAWING - CITS




            Arc command (Fig 4)
             1     Choose        Draw, arc.

                                 (or)
             2     Click         The Arc icon.
                                 (or)

             3     Type          Arc at the command prompt
                                 command: ARC
             4     Draw          One of the arcs.



              Fig 4













                TIPS                                         Fig 5
            -  Except for 3 point arcs, arcs are drawn in a counter
              clock wise direction.
            -  While in the arc command, press the right mouse
              button to select the following options for arcs:
              (Fig 5)












           Arc examples (Fig 6)
           3 point arc
           Start, centre, chord length

           Start, centre, end
           Start, end, radius
           Start, centre, included angle
           Start, end direction

           Drawing ellipses and elliptical arcs
           Ellipses are much easier to draw with CADD than on a drawing board.  On a drawing board, you need to find the
           right size template or draw a series of arcs individually to draw an ellipse. With CADD, all you need to do is specify
           the size of the ellipse.









                                                           274
                                  CITS : Engineering Drawing (Mechanical) - Exercise 12
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