Valid Body with volume equal to zero
Valid Body with volume equal to zero
(OP)
Hi everybody
I have a valid Body with volume equal to zero (in NX7.5 and NX8.02) !!!
Does anybody found the same problem ?
Thanks in advance
Regards
Didier Psaltopoulos
http://www.psi-cad.com





RE: Valid Body with volume equal to zero
Can you post a picture or even better, the part file?
www.nxjournaling.com
RE: Valid Body with volume equal to zero
RE: Valid Body with volume equal to zero
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
Siemens PLM:
UG/NX Museum:
To an Engineer, the glass is twice as big as it needs to be.
RE: Valid Body with volume equal to zero
It's not a sheet body and I calculate it with Analysis / Measure Bodies
Have a look at the picture
Regards
Didier Psaltopoulos
http://www.psi-cad.com
RE: Valid Body with volume equal to zero
Maybe do an Examine Geometry and see what comes up.
Analysis -> Examine Geometry
RE: Valid Body with volume equal to zero
I start my post by saying that I have a valid body. It mean that I know the way to examine it !!!
I was able to isolate the region with volume equal to zero. So I have attached the part which it's no more confidential.
Have a look and thanks a lot to your feedback
Regards
Didier Psaltopoulos
http://www.psi-cad.com
RE: Valid Body with volume equal to zero
It reports as a solid body, but the outer bosses appear to be missing faces. If you trim those off, then the body passes geometry checks.
www.nxjournaling.com
RE: Valid Body with volume equal to zero
Did you select the body or all selectable entities ?
I found sometimes that I have tiny and misaligned edges on a valid body but It's the first I have a volume equal to 0
I agree with you that some faces didn't appear in shading
What do you mean by "trim those off" ?
Could you send me the clean part to understand ?
Thanks
Regards
Didier Psaltopoulos
http://www.psi-cad.com
RE: Valid Body with volume equal to zero
Looks like you'll have to try to fix the bosses. I see from your picture that it is a dumb solid, have you tried Heal Geometry?
www.nxjournaling.com
RE: Valid Body with volume equal to zero
I didn't understand your first answer.
I have used trim body to isolate the problem. But i didn't see the shading problem in this area.
I thought is was enough to select only the body for checking validity.
It seems to be a bug.
Regards
Didier Psaltopoulos
http://www.psi-cad.com
RE: Valid Body with volume equal to zero
Good news: I ran the heal geometry on the chunk of the body you posted and it fixed the problems and then passed the geometry checks. Heal geometry can be found at File -> Export -> Heal Geometry...
www.nxjournaling.com
RE: Valid Body with volume equal to zero
Thanks a lot for this very good answer. I never used heal geometry, it's very helpful.
What's the purpose of checking the solid if it's not enough ?
Regards
Didier Psaltopoulos
http://www.psi-cad.com
RE: Valid Body with volume equal to zero
On large models the examine geometry can take considerable time to compute, then it is nice to be able to isolate the checking into smaller checks.