Extension face 1

[cubalibre000]

Hi,
I attach an automotive surface where I need to extend the inner profile surface of 10 mm in G1.
I tried to do with 'law extension' command without success.
Can someone help me ?

Thank you...

Using NX 8 and TC8.3

 

[jerry1423]

I could not open your file, but I suggest you try the "enlarge" command. You probably will need to play around with it a bit before you get what you want.
edit -> surface -> enlarge

 

[cubalibre000]

Hi Jerry,
thank you for your suggestion, but to better understand my question, you have to open the file.

http://www.7-zip.org

is the best software for compress or uncompress files.
Try it and it's completely free.

Thank you...

Using NX 8 and TC8.3

 

[JohnRBaker]

Where did you get this file? Was the best that you could do an IGES neutral file? But even that being said, there is no easy or even practical way of adding a 10mm 'extension' to the interior profile since some of the internal radii are less than 10mm and therefore will never be able to be offset a distance greater than that. The best that you're going to be able to do is create an approximate new profile and then create a set of new surfaces to fill the gap.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA

http://www.siemens.com/plm

UG/NX Museum:

http://www.plmworld.org/p/cm/ld/fid=209

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

 

[cubalibre000]

Hi John,
which command do you use to discover the minimum radius ?
The file has more steps Catia V4, V5 and now NX8.

Thank you...

Using NX 8 and TC8.3

 

[JohnRBaker]

Go to...

Analysis -> Curve -> Curve Analysis...

...and in the Analysis Display section of the dialog set the 'Label Value' to 'Radius of Curvature' and toggle on the 'Minimum' option just below that. Now select the various edges around the interior opening and you will see many local minimums of less than 1 mm and even some of the larger ones are only 5mm to 7mm radius.

Some of these minimums are just design intent while the very small ones are indications of poor modeling techniques. While there's nothing that can be done about as as-designed small radius (the 5mm and 7mm sizes) except change the design, the ones which are less than 1mm or even smaller (there were a few of those as well) are probably the result of poor modeling techniques and there's not a lot that you can do about that: 'Garbage in = garbage out'. I would expect that if this model had been created originally on NX that while one would still have to contend with the as-designed 5mm and 7mm radii, at least those less than 1mm examples would have not been present.

Note that after I sewed the individual sheet bodies into a single large sheet body (this required a larger than normal tolerance setting which was the first warning bell that this data was poor). I then had to use the Heal Geometry utility to get it to the point where I could even try some simple modeling tasks.

Anyway, that's about the best that I can recommend based on the quality and characteristics of your example model.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA

http://www.siemens.com/plm

UG/NX Museum:

http://www.plmworld.org/p/cm/ld/fid=209

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

 

[cubalibre000]

Hi John,
thank you for your valuable post.

Thank you...

Using NX 8 and TC8.3