New Sketch
Start a new sketch and select a sketch plane.

- 
                Create a new sketch plane by defining a plane.
                - 
                        Select one of the global planes.
                         
 Figure 1.
- 
                        If needed, use the Vector tool to modify the
                            plane's orientation.
                         
 Figure 2.
- 
                        Click  on the guide bar. on the guide bar.
- 
                        Once the plane is accepted, the new sketch entity is added and you can
                            start sketching using the Create tools.
                         
 Figure 3.
 
- 
                        Select one of the global planes.
                        
- 
                Create a new sketch plane by selecting a face.
                - Change the entity selector on the guide bar to Surface.
- 
                        Select a surface to use as a reference plane.
                         Figure 4. Figure 4.
- 
                        Click  on the guide bar. on the guide bar.
- 
                        Once the plane is accepted, the new sketch entity is added and you can
                            start sketching using the Create tools.
                         
 Figure 5.
 Tip:- For a surface selection, the cursor click location becomes an origin of the sketch plane.
- At this origin, the plane normal is calculated and intersected with the part that the surface belongs to.