Creating Axes
Creating Axes
Key Point
You use axes with sketch based features such as shafts and grooves, and as a mirror line for the Symmetry and Mirror command.
Just like construction lines, axis lines are not visible outside the sketch.
Prerequisites
You must be in Sketch mode and Dimensional and Geometrical Constraints active.
Creating an Axis
Step 1:
Create a new 3D Part from the Add drop down menu and then select a plane to create a sketch within it.
Remember to use the Position Sketch icon to create the sketch and then select a plane from the Specification Tree and then click OK in the Sketch Positioning dialog box.
Step 2:
Select the Axis icon.
Step 3:
In the Graphics Window, pick the Start Point or enter the H and V values for the start point and press TAB key. The text boxes change allowing you to define the endpoint.
Step 4:
Pick the End Point or enter the H and V values for the endpoint and press TAB.
CATIA creates the axis and associated dimensions if specified using the Tools Pallet toolbar.
You can also freely pick a point in the Graphics window and then a second point to create an Axis.
Step 5:
When finished the exercise, to exit the sketch select the Exit App. You do not hae to save this exercise.
Frequently Asked Questions
Question: Why use an axis in a sketch?
Tips
Any line may be quickly converted to an axis. Regardless of line type pick the line then pick the axis icon. Catia will ask you to confirm the conversion.









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