Using Construction Planes

	This task shows you how to create planes to use as references as you construct and position the elements in a drawing.
	Construction planes are created relative to the axis of the active element, so make sure that the appropriate element (usually an area) is active.
	1.	Select the `Construction Planes` button .
		The Grid Creation dialog box is displayed.
	2.	Specify the parameter values for the grid: Grid Type -- The axis/axes along which the construction planes are created. X Y Elevation (Z) XY
		Step Size -- The distance between construction planes. Construction planes are created outward from the element's axis. If you are creating construction planes in an area along the X or Y axis, as soon as you enter a step size, the system calculates the number of construction planes that will fit in each direction and displays the values in the following fields:
		Number (+) Number (-) If you select an XY Grid Type, the number of steps is calculated, and the Number(+) and Number (-) fields are not displayed. If you are creating construction planes in free space or along the Elevation (Z) axis, the number of steps cannot be calculated. A default value is used for the number of steps. When the Grid Type is set to Elevation (Z), the number of steps is displayed as:
		Upper Lower
		You can change the number of steps.
	3.	Select `OK` to create the construction planes.
	To use construction planes for routing or positioning elements, set the Snap Mode to one of the construction plane options on the General Environment Tool Bar .