Sketcher > Setting Sketcher Environment > To Set the Sketcher Grid
  
To Set the Sketcher Grid
1. Click Sketch > Setup > Grid. The Grid Settings dialog box opens.
2. Define the grid type.
3. To define the grid spacing, click Dynamic or Static.
For Static, accept the default value of the X and Y spacing or type new values in the boxes.
4. To reset the grid origin, click and select a point in the graphics window.
5. To reset the grid orientation, type a new value for the grid angle.
6. Click OK.
 
* You can also control these settings using a configuration option or using the Sketcher area of the Creo Parametric Options dialog box.