Manufacturing > Mill Geometry > Mill Surfaces > Modifying Mill Surfaces
  
Modifying Mill Surfaces
A Mill surface is a set of features that can be referenced by a Mill volume or by a milling NC sequence. Each action such as adding, merging, or extending that is used in creating a Mill Surface produces a separate feature (similar to Mill volumes). For example, if you add a surface, silhouette trim it, and then extend the edges, three features are added to the workpiece.
You can delete or suppress Mill surfaces, or their portions, by deleting or suppressing the appropriate features on the workpiece. Features can be selected by selecting the patches on the screen (use Query Sel if necessary), or by feature number.
 
* A special technique of reordering Mill surfaces is also available. Follow the link under See Also for details.
When not needed, you can switch off the surface display by clicking View > Blank.
You can displays the blanked surfaces using View > Unblank. After you click Unblank, the Search Tool dialog box opens listing the names of all the currently blanked Mill surfaces. Select the surface name to unblank it.
You can also modify the dimensions of a surface by right-clicking the feature in the Model Tree and selecting Edit from the shortcut menu. You can then select the surface features as you would select regular part features. You can modify the dimensions of a surface only if the surface is unblanked.
 
* You must complete the manufacturing geometry definition before redefining using the Edit option from the shortcut menu on the Model Tree. You cannot redefine member features while the manufacturing geometry is being edited.