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4 Select the Grid On check box to turn on the grid.

5 Enter the desired grid spacing in the Grid X Spacing text box.Use the information in the sections preceding these steps to decide on a reasonable grid spacing.As with snap spacing, if the Equal X and Y Spacing check box is selected, the Y spacing automatically changes to equal the X spacing. Again, you usually want to leave it that way. X measures horizontal distance; Y measures vertical distance. The AutoCAD drawing area normally displays an X and a Y icon in the lower-left corner in case you forget. If you’re an old AutoCAD hand and find the graph paper grid too obtrusive, select the Display Dotted Grid in 2D Model Space check box in the Grid Style area to switch to the old-style rows and columns of dots. Interestingly, it seems most beginners like the grid because it lets them get a sense of scale, but most experienced users turn it off.

6 Specify additional grid display options in the Grid Behavior area:Adaptive Grid: AutoCAD changes the density or spacing of the grid lines or dots as you zoom in and out.Allow Subdivision Below Grid Spacing: Select this check box in conjunction with the Adaptive Grid check box. The spacing can go lower than what you’ve set, and it may go higher if you’re zoomed a long way out of your drawing. (If it didn’t, you wouldn’t be able to see your drawing for the grid!)Display Grid Beyond Limits: This allows the grid to display over the entire drawing area, no matter how far you’re zoomed out. Clearing this check box makes AutoCAD behave the way it always behaved in earlier releases — that is, the grid is displayed only in the area defined by the drawing limits. Follow Dynamic UCS: This option (not available in AutoCAD LT) is a 3D-specific feature that changes your drawing plane as you mouse over 3D objects. I cover this feature in ssss1.