×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

thicken surface?

thicken surface?

thicken surface?

(OP)
I used catia v5 GSD & extracted the surface of solid by eliminating extra feature. Now, i'm trying to thicken the surface using part design but getting error message:
" local degenration on surface body can't be built"

Is there any othe approach can apply?

RE: thicken surface?

If you've already got a solid, they maybe you could use shell. This would allow you to apply an inside and outside thickness to each surface of the solid.

RE: thicken surface?

Johnab - Part Design work bench is used for solids, GSD is used for surfaces.  If you want to offset the surface, go back into GSD and choose offset surface.  Like all softwares - they are not perfect on complicated offsets you may receive that error.  Catia prefers more tangental surfaces for offset.

Regards,
Derek

RE: thicken surface?

Quote:

If you've already got a solid, they maybe you could use shell. This would allow you to apply an inside and outside thickness to each surface of the solid.

If you can't offset a surface, the same condition that prevents the offset would also prevent a shell operation.

Just because you have a solid, certainly doesn't make it viable, by any stretch of the imagination.  I find that about 90% of the time, when I disassemble an imported solid, I can't put it back together.  It can also happen with native solids, if poor modeling practices have been used, or if sliver surfaces exist.

A local degeneration is most likely an inverted normal.  Try making a very thin offset, like .005".  If it works, you are attempting to exceed a maximum radius offset somewhere along the surface with your larger value. (before it becomes a sharp corner, or loses tangency to a thin adjacent surface)  You may also want to try the offset in both directions.  If it doesn't work in either direction, you have some other problem.  Before joining or offsetting the surfaces, run a surface connect check.  If the surfaces are already joined, use the "boundary" function, to check for other domains within the boundaries of the surface.  If you have any, it means that you have gaps or overlaps.

Good luck.

---
CAD design engineering services -  Catia V4, Catia V5, and CAD Translation.  Catia V5 resources - CATBlog.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources