modify tools in CAD

2.  Used to delete the selected object. video
 Type ‘E’ in command window.
 Select the object.(enter)

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6.  Create a mirror image of a object. 
 It is useful for creating symmetrical
objects.
 You flip the object about an axis called
a mirror line to create a mirror image.
 First select the object.
 Choose the position
 . You can choose whether to delete [y]
or retain the original [n] object.


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 Create a duplicate object parallel with the
original object.
 First select the offset distance; [enter];
 select the original object;
 specify on which side you want to offset.

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10.  Create copies of objects in a rectangular or
polar pattern.
 first input the number of rows and columns .
 select the object.
 select either Preview or OK to execute the
array command.
 In the same manner it's possible to create a
polar array.

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12.  Rotate objects with an absolute or relative
angle.
 When using an absolute angle: Specify the
base point and then specify the rotation
angle.

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14. With the trim option objects can be shortened
or lengthened with the edges of other
objects.
Steps:
 Type tr in the command line;
 select the objects to trim.

15. Trim