I have a model with sophisticated parameter control. (Very sorry for no uploading due to company confidence!) A Combined Projection feature always fails to update correctly when a key expression value is changed.
I make a study and find that it's due to "Projection Direction 2":
I wonder what can be done to fix it. Very sorry for so frequent post. Thank you!
Creating a Datum Axis doesn't fix it. As can be seen, the Datum Axis (purple arrow, lower) does update with the changing expression value, but "Projection Direction 2" (orange, higher) doesn't follow the Datum Axis!
Both curve strings are created in sketch and so strictly coplanar.
The failure of Combined Projection feature to update automatically turns out to be a serious problem.
Wne one key expression value is changed, some Combined Projection features would not update automatically. This would DISRUPT many later features, which can't revive even after the problematic Combined Projection features are fixed by manual intervention as described in the first post of this thread.
Any help would be highly appreciated!
The attached file is an example reproducing the issue. I try my best, and fail to fix it.
You can simply modify the user expression "myAngle_factor" from 1 to 2, and also from 2 back to 1. After each modification you can see that the combined projection only updates after manul intervension as described in the first post of this thread.
I am able to reproduce your behavior if I have "Menu > Tools > Update > Delay Model Update" enabled. With Delay Model Update disabled the Combined Projection updates whenever I change the angle (NX11.0.2 mp4).
The "Delay Model Update" option is disabled by default. The issue is still there for me.
Interestingly, when I enable "Delay Model Update" and then modify the angle, nothing happens. After I click "Update Model", the WRONG result shows up!