Fillet problems in NX

[Jashe]

I'm having trouble with a design when I try to make a fillet, part of it disappears. I used a sheet to do the split of the solid and when I added the fillet the middle part disappears. I've attached a power-point giving step by step on what I'm doing. Somebody let me know what I'm doing wrong if you know as this is not the first time I've run into this problem.

 

[DLH81]

It looks like you aren't getting any errors on your edge blend, and from the screen shot you showed, it seems that some of the faces may be missing. Try this and see if it helps:

Go to Edit - Object Display, and select your object. Make sure the translucency is set to 0. Expand the settings portion of the dialog box and check "Apply to all faces of selected body". Click ok or apply and see if that works.

If that is what fixes the problem I'd be interested in hearing from anyone else on why this occurs sometimes. I've had this issue in the past and been able to fix it with the above method, but just wondering why it happens in the first place or if there is a setting that needs to be changed?

 

[JohnRBaker]

This could also be a display driver issue. Try doing a screen Fit and then a full Display Regeneration and see if that helps.

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[Jashe]

DLH81: I tried that but the Translucency was already set on 0. I think I modeled it wrong.
JohnRBaker: Not sure how to do a full Display Regeneration.

 

[cowski]

Regenerate view: View -> operation -> regenerate work

Also, after applying the blend, run the examine geometry command. This will help determine if it is a geometry or display only issue.

To run the examine geometry command:
Analysis -> Examine geometry
Turn on all the body and face checks, window select around your entire model (to be sure you select all faces and edges as well as the body object itself) and press examine geometry. If one or more of the tests doesn't report as "passed", there is a geometry problem. If all the tests pass, it is probably a display driver problem.

www.nxjournaling.com

 

[jerry1423]

I tend to get display driver issues when I keep the part open for several days without closing.
Do you do that too ?
Usually an NX reboot will fix the issue.

 

[SDETERS]

I have experienced this every once in a blue moon or so. Have you tried to do a face blend and use the Two defining face chain option? If you choose a different fillet radii size does it still act this way? usually when I have experienced this it was on a part that was CMM (Content Migration manager) from I-Deas to NX.

 

[Jashe]

cowski: All tests passed and I did a Display Regeneration. No dice.
Maybe it has something to do with using a sheet to cut the main body. I should approach this another way.

 

[cowski]

Maybe it has something to do with using a sheet to cut the main body.

This is a valid modeling technique and shouldn't cause this type of problem.

Is it possible to post your NX file (or a similar example file that shows the same issue)?

www.nxjournaling.com

 

[SvenBom]

I have had a similar problem with one step file. It shown only the vertical faces. There were no top or bottom face. It looked like it is not a solid at all. But, when I did a simple mass analysis, I have received the mass value. So it was a solid and it was just a problem with showing the top and bottom surfaces. I have attached the three movies, that shows this problem.
First movie just shows, that the model actually is a solid body. And it also show the information, where I can see, that there is a problem with geoemtry.
The second movie shows, how I have searched for the problem area.
The third movie shows, how I have fixed this problem. The problem can also bi fixed with some extrude on this area. Subtract or Unite. It was enough just to perform a change on this problematic area.

I hope, that the movies will help you in finding the problem and solving it.

 

[looslib]

What is your hardware spec?
Are you using a certified computer?
Do you have a certified graphics card?
I have seen this with a gaming graphics card in the past.


"Wildfires are dangerous, hard to control, and economically catastrophic."

Ben Loosli

 

[SvenBom]

I use HP EliteBook8760w with Nvidia Quadro3000m. And this is happening also on other computers with different configuration. The file, used in my movies was a step file.

 

[Jashe]

cowski: I've actually tried a different approach using solids and had better luck. But I'm sure to run into this problem again as I always run into problems when attempting to cut a solid with a sheet.
SvenBom: I did not have any luck playing any of those AVI files. I wonder what the problem is there? Don't all computers play AVI files?
looslib: I'm new at the design game so I have a question to each of your questions. I won't be discouraged if you don't have time to deal with the elementary questions. But I am trying to learn.
1. How do I find the hardware spec?
2. How do I know if I'm using a certified computer?
3. How do I find out what kind of graphics card I am using?

 

[SvenBom]

Jashe, probably you don't have the codec to see the movie. I have attached the codec. Just unzip the file and ou will get one exe file. Execute this exe and you will be able to see those movies.

 

[Jashe]

SvenBom
Thanks. I was able to install the codec and watch the videos. Even though I have changed my approach to the model, I am sure I can use the analysis tools and those Syncronizing Tools is a whole new venture for me as well.

 

[mmauldin]

I created a similar file on a dell Precision M4600 with a Quadro 2000M video card, got the same result.

 

[mmauldin]

Attached is the part file.

NX7.5.3.3

 

[uwam2ie]

i did it my way - f. sinatra

 

[cowski]

mmauldin,
Before the blend is applied, the model does not pass body consistency or face self-intersection tests. I suspect the same for the OP's model...

www.nxjournaling.com

 

[SDETERS]

try using Synchronous like offset surface. The round surface does all kinds of goofy stuff. WOW. Nice part Mmauldin. FYI I get the missing surface also. Yes we are running a certified Graphics card. Nividia quadro 4000