Change Drawing View Orientation 1

[rhobere]

Hello all,

NX Version 7.5

I inherited a drawing that I need to update with a few new parts. I added the new components to the model and added some mounting holes to one existing component. That's all I changed. NOW, when I opened the drawing, every single component in the drawing was rotated maybe 10-15 degrees in every single view. Some are rotated about the out-of-the-page axis which I could simply change with the Rotation option in the View Style menu. The real problems are the views that rotated about the vertical or horizontal axes. Rather than viewing orthogonal to a face, I can now see an adjacent face.

So my question is two-fold.
A) What could have caused this reorientation if I didn't reorient the model in any way?
B) Is there a way to fix the orientation without having to manually change every view in the drawing?

This drawing has 9 pages, with 12-20 views on each page so I would REALLY like to avoid spending all of my time over the next few days simply replacing every view manually and re-dimensioning.

Any help would be much appreciated.
- Robert

 

[rhobere]

So I might have just reversed my problems. Luckily I made my new components as separate parts so I just deleted the newest revision, opened the previous revision and saved as - new revision. Now I just have to re-add my new components.

I'd still be interested to know why it would have happened to begin with because at this point there's no guarantee that it won't happen again between now and when I open the drawing again.

Thanks,
- Robert

 

[cowski]

Are you using assembly constraints? If so, it may be that your assembly wasn't fully constrained and it updated to the position of one of the new components instead of the new component updating to the proper position. This can be avoided by choosing one component to act as the "ground" and using a fix constraint on that component, then constrain the other components to it (and each other).

www.nxjournaling.com

 

[rhobere]

That very well could be the problem, cowski. This model is an absolute mess as it's been lazily modified many times over the years. I ended up grounding one of the components before I started making my changes this time around.

I just opened the drawing and used the Update View tool and voila, no weird rotation issues. Breathing a sigh of relief right now.

- robert

 

[JohnRBaker]

Yes, anchoring one of the Components of an Assembly is something that years ago, back when we still used Mating Conditions, people never had to worry about since, by definition, the first Component placed was automatically assumed to be 'fixed'. Of course, later on if you would have really rather of had a different Component be the 'fixed' one, you had to literally start over from scratch since the order that Components were added and when the Mating Conditions were applied was critical. Now with Assembly Constraints, any Component can be defined as being 'fixed' at any time, and you can even have more than one 'fixed' Component if that's what you want (something that could never be done with Mating Conditions). And while it's not absolutely mandatory, it's still a good practice to have at least one Component 'fixed', just that now users have to remember to eventually do that step before they get too far along in their workflow.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:

To an Engineer, the glass is twice as big as it needs to be.

 

[rhobere]

Very good information, John. Thank you for the insight.

-Robert