UCS

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Use the UCS (User Coordinate System) tool to change the user coordinate system for easier modelling.

When you select the UCS tool from the menu, a new tool palette opens.

Main tools on the tool palette

	Description
	Use Object plane tool to set the new UCS plane to the plane of an existing element.
	Use 3 points tool to define a new UCS by 3 points.
	Use Global system plane tool to set the new UCS to any of the 3 global system planes.
	Use Origin tool to move the origin point of the current UCS to a new location. The orientation of the UCS does not change.
	Use Reset to global coordinate system tool to reset the current UCS to the global system plane.
	Use the Move origin checkbox to allow or deny moving the origin point when defining a new UCS.

Additional functions for Object plane

These functions are available only when you select the Object plane tool.

	Description
	Use X'Y' plane function to set the plane of the new UCS to the X'Y' plane of the existing element.
	Use X'Z' plane function to set the plane of the new UCS to the X'Z' plane of the existing element.
	Use Y'Z' plane function to set the plane of the new UCS to the Y'Z' plane of the existing element.

Additional functions for Global system plane

These functions are available only when you select the Global system plane tool.

	Description
	Use XY plane function to set the plane of the new UCS to the global XY plane.
	Use XZ plane function to set the plane of the new UCS to the global XZ plane.
	Use YZ plane function to set the plane of the new UCS to the global YZ plane.