Another way to ensure drawing accuracy is to turn on and set snap spacing. When snap is turned on, the program restricts the selection points to predetermined snap intervals. Although it is often helpful to match the snap spacing to some interval of grid spacing or another related setting, the settings do not have to match.
TIP To toggle snap settings on and off at any time, double-click the SNAP setting on the status bar, click the Snap tool () on the Settings toolbar, or press F9.
In addition to setting the snap spacing, you can change the snap and grid orientation. You can also rotate the alignment of the grid or set it to create isometric drawings.