To Create a Face Feature
1. Click > 
Face.
Face.The Face Feature dialog box opens with the following elements:
◦ Feature Name—The default feature name, such as Face1 (the system increments the number for the next Face feature). You can type a customized name.
◦ Define Feature Floor—Select the Floor surface for the feature (that is, the top surface of the reference model).
◦ Define Program Zero—Change the coordinate system used for feature definition and machining.
2. Select the Floor surface. On the SELECT SRFS menu, click Done/Return.
3. Change Program Zero, if needed. Click 
next to the element to display the current setting. The Preview button lets you check the feature geometry by highlighting the Soft Walls in cyan.
next to the element to display the current setting. The Preview button lets you check the feature geometry by highlighting the Soft Walls in cyan.4. Click OK to complete the feature, Cancel to quit.