NX part files have FIXED database units. They cannot be changed on the fly and must be determined at the time that you create you part file (note that there is a command line utility which will CONVERT the database units of an NX part file, but this is recommended only when there is a need to do basically a permanent conversion.
However, you can change, for your current session, what units the system is expecting you to enter and which it will report queries (i.e. Info) back to you in. This can be set by going to...
Analysis -> Units...
...where you can select another units scheme or you can even define custom units, such as 'Furlongs/Fortnight'. However, once saved and reopened, the part will revert to it normal units and even when in the custom units mode, the database of the part file is not altered, all that changes is the system will default to chosen units for input and for the default units used in the Expression system or for when doing queries or measurements. BTW, when using the Expression system you can assign specific units on an Expression by Expression basis. There is even support to convert units using expressions by simply setting one expression equal to another, each with different units (as long as the 'Dimensionality' is consistent (Length, Angle, Mass, etc.).
John R. Baker, P.E.
Product 'Evangelist'
Product Design Solutions
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
To an Engineer, the glass is twice as big as it needs to be.
