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ENGINEERING DRAWING - CITS


            Basic commands - ll




           The  previous  lesson  dealt  with  drawing  commands. This  lesson  will  introduce  some  common  modifying
           commands.    In  AutoCAD,  you  may  actually  use  modifying  commands  more  often  than  drawing
           commands.  Now that you know the basics, here’s some more commands to add to your collection.  Three
           commands, Trim, Extend and Offset are used often in 2D AutoCAD work.

          Command       Keystroke/Short cut         Location                     Result

           Rectangle     RECTANGLE/REC         Home>Draw>Rectangle       Draws a rectangle after you enter one
                                                                         corner and then the second.
           Trim          TRIM/TR               Home>Modify>Trim          Trims objects to a selected cutting edge.

           Extend        EXTEND/EX             Home>Modify>Extend        Extends objects to a selected boundary
                                                                         e  d  g  e  .
           Offset        OFFSET/O              Home>Modify>Offset        Offsets an object (parallel) by a set
                                                                         distance.
           Object snaps    OSNAP/OS/F3        Tools>Object Snap Settings   Brings up the OSNAP dialog box.
           Move          Move/M                Home>Modify>Move          Moves an object or objects.

           Copy        Copy/CP                 Home>Modify>Copy          Copies object(s) once or multiple times.
           Stretch     Stretch/S               Home>Modify>Stretch       Stretches an object after you have
                                                                         selected a portion of it.
           Mirror      Mirror/MI               Home>Modify>Mirror        Creates  a  mirror  image  of  an  object  or
                                                                         selection set.
           Rotate      Rotate/RO               Home>Modify>Rotate        Rotates objects to a certain angle.
           Fillet      Fillet/F                Home>Modify>Fillet        Creates a round corner between two lines.

           Chamfer     Chamfer/CHA             Home>Modify>Chamfer       Creates an angled corner between two lines


           Move command (Figs 1 & 2)
           1      Choose        Modify, Move. Or
           2      Click         The Move icon or

           3      Type          Move at the command prompt command:  MOVE or M
           4      Pick          Objects to move select objects (select)
           5      Pick          A point to move from base point  of displacement: (Pick point)
           6      Pick          A point to move to second point of displacement:  (pick point)


             Fig 1
                                                                      Fig 2










           TIP
           To move an object a specified distance, type a distance at the second point of displacement prompt:@1<0





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                                    CITS : Engineering Drawing (Mechanical) - Exercise 12
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