From the Sketch section of the action bar, click Axis.
Tools Palette displays two value boxes for
defining the axis.
In the Tools Palette, specify the coordinates for the
first point.
Click to indicate the endpoint.
Tips:
You can create axes manually. For this, move the pointer to activate
SmartPickSmartPick and click
as you get the required option.
You can create only one axis per sketch. If you try to create a second
axis, the first axis created is automatically transformed into a
construction line.
Before starting the Axis command, if you have
already selected a line, this line is automatically transformed into
an axis.
Axis cannot be converted into a construction element.