The symptoms were explained to me as follows:
- A number of the detail parts that were visible in the NX 8.5 assembly drawing were not being displayed in many of the NX 10.0 drawing views after update.
- Although all of the parts were visible when the assembly part file was initially opened in NX 10.0, and the drawing looked the same as it did in NX 8.5, all of the views were marked as out of date in the Part Navigator.
- When the drawing views were updated, a good number of the detail parts would disappear from the drawing view.
- When adding a new base view, it appeared that the new view window was a sizable distance away from the extents of the assembly model regardless of the scale of the new view.
After some trial and error, I realized that this behavior was also evident in NX 126.96.36.199 MP9 and NX 188.8.131.52 MP7, so I decided that I would need some help from the Siemens' GTAC. I spent some time searching NX 8.5, NX 9.0, and NX 10.0 documentation as well as the GTAC Solutions Center Database before creating an Incident Report (#7437180) with the GTAC. The answer to my IR came from the GTAC pretty quickly.
So, if you are experiencing similar drawing view behaviors when working with legacy part files in newer versions of NX, you may want to try a larger value in this Customer Default setting. I have yet to find where the value is fully documented, but in this specific case, the original value was set to 1035, and a quick analysis of a couple of points at the outer extents of the assembly revealed that some were at a distance of 14,745 from the absolute origin. A minimum value of 15,000 yielded proper results. Keep in mind that there is both a Metric and English value associated with this Customer Default setting.
You will find the setting in the Customer Defaults dialog per the following illustration:
-Ron St. Denis, Sr. Applications Engineer