To Modify Grid Spacing
Using the following procedure, you can modify the spacing and angle of the grid lines. The commands that are available depend upon the type of grid. The system saves the values for the grid spacing and retrieves them with the drawing.
1. Click > 
Draft Grid. The GRID MODIFY menu appears in the Menu Manager.
Draft Grid. The GRID MODIFY menu appears in the Menu Manager. | You can also click > Draft Grid. The GRID MODIFY menu appears in the Menu Manager. |
2. Click Grid Params from the GRID MODIFY menu. For a Cartesian grid, the CART PARAMS menu displays. For a Polar grid, the POLAR PARAMS menu displays.
3. Modify the grid spacing according to the menu that displays as mentioned in the preceding step.