The pre-defined default coordinate systems when you enter any EZ-CAM application is called the World coordinate system and shown in the middle of the screen, drawn in red. If necessary, the system provides commands that enable you to define additional coordinate systems that we call User Coordinate Systems or simply UCS. The New UCS command creates a new coordinate system at any desired position and direction without having to move any entities. Geometry and other elements are always defined relative to the currently active UCS system that is displayed on the UCS-Status/Selection Button on the lower part of the EZCAM screen.
Redefining the World Coordinate System
If the Active Coordinate System is set to "World", then you can redefine the origin and the direction of the World Coordinate System, using the UCS Three Points or UCS on Geometry commands.
Only one UCS can be active at one time. To change the current UCS use the UCS - Selection Button located on the bottom of the EZCAM screen.
The FACE, FACER and SIDE coordinate systems that are available in EZ-TURN and Front (XZ) and Side (YZ) Coordinate Systems in EZ-MILL are fixed and cannot be deleted, changed or transformed in any way. Although the World System cannot be deleted, it's orientation can be redefined by using the UCS Three Points or UCS on Geometry commands.
Apart from the above mentioned exceptions, UCS coordinate systems can be moved, translated or rotated like any other entity in the EZCAM viewport.
You cannot hide or assign a UCS to a particular layer.
UCS systems are saved in the geometry data file (*.GEO).
For every Work Step you can assign an existing UCS system as the Machining Coordinate System or MCS. All coordinates that are posted in the NC-code will be based upon the selected MCS system. You can change the assigned MCS system directly on the Tool Info tab of the Work Step Data dialog or via the MCS - Selection Button at the bottom of the screen. The TurnMill features have the MCS ID list box located directly on the feature dialog.
UCS, three points
UCS on geometry