Part Modeling > Datum Features > Coordinate Systems > To Create a Sketched Coordinate System
  
To Create a Sketched Coordinate System
When you create a geometry coordinate system in a sketch-based feature, the new coordinate system exists as a regular coordinate system in the Standard application. Using a geometry coordinate system is the only way that a coordinate system created in Sketcher can convey feature-level information outside of Sketcher.
1. Click Model > Sketch. The Sketch dialog box opens.
2. Select a sketching plane and set its orientation, or accept the default orientation.
3. Click Sketch. The Sketch tab opens.
4. Click Sketch > Coordinate System in the Datum group. A geometry coordinate system appears at the tip of your pointer.
5. Click the graphics window to place the coordinate system center.
 
You can create multiple geometry coordinate systems in the same sketch.
Right-click a coordinate system in Sketcher to toggle between Construction and Geometry.
6. Click OK.