Previously there was a Blank Distance option in Cavity Mill Operation. Now it is missing in the latest versions of NX.
Need to use Blank Distance option in Cavity Mill.
Solution
Blank distance creates an internally defined offset of the part geometry. It is removed from NX1872.
The same can be specified in Part Offset in Blank tab in the Geometry Parent. In case if the user wants to have different Blank Distance for every Cavity Mill operation, The option Blank Stock can be used.
Hardware/Software Configuration
Platform: INTL64 OS: windows OS Version: 1064 Product: NX Application: CAM Version: V1953 Function: CAVITY_MILLING