Extracting Sketches
To create a base feature from a 2D drawing, extract sketches to specify
the appropriate views. The sketches fold up automatically into the correct
orientation as though the drawing were a piece of paper.
Specify which portions of the drawing are the sketches for the front
view, the right view, and so on. You can also create auxiliary sketches
that are not parallel to the principal view planes.
To extract a sketch for the front view:
-
While editing a sketch, select the sketch entities that make up
the front view.
NOTE: You must define a
Front view before defining any
of the other views. You can box select, chain select, or hold Ctrl
and select entities individually.
-
Click Front 
on the 2D to 3D toolbar, or click Tools,
Sketch Tools, 2D
to 3D, Front.
A new sketch appears in the FeatureManager design tree.
To extract other orthogonal sketches:
While still editing the original sketch, select
the sketch entities that make up one of the orthogonal views, such as
the top, right, left, bottom, or back.
-
Click the corresponding icon
on the 2D to 3D toolbar or on the Tools,
Sketch Tools, 2D
to 3D menu.
A new sketch appears in the FeatureManager design tree. The sketch
folds into the correct orientation to the Front view.
To extract auxiliary sketches:
While editing a sketch, select the sketch entities
that make up the auxiliary view.
Hold Ctrl
and select a line in another view to specify the angle of the auxiliary
view.
Click Auxiliary
on the 2D to 3D toolbar, or click Tools,
Sketch Tools, 2D
to 3D, Auxiliary.
Next, align the sketches.