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!

*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

CATIA R12SP4 to Unigraphics NX2

CATIA R12SP4 to Unigraphics NX2

CATIA R12SP4 to Unigraphics NX2

We have a supplier who is unable to read our CATIA STEP files (203 or 214) successfully into UG NX2. They say there are a number of surfaces importing untrimmed.

However, if we take the same STEP file to Solidworks and create a Parasolid, then import to UG, it works fine.

Any ideas of how to make the STEP import correctly?


RE: CATIA R12SP4 to Unigraphics NX2

While I am not that familiar with SolidWorks, the first thought that I had was this:

Convert the UG part to Parasolid. Open it in SolidWorks. Export STEP file from SolidWorks.

Another option would be to convert the UG part to Parasolid. Import the Parasolid into a new UG part. Export new UG part to STEP.

I hope that this helps!

Chris Cooper
Cleveland Golf / Never Compromise

RE: CATIA R12SP4 to Unigraphics NX2

Did the UG folks increase (allow for larger gaps) their modeling tolerances to see if that had any effect on the untrimmed results?  Did they give you any feedback as far as what messages they were seeing as the STEP files were being imported into UG?  Was the STEP of a solid, joined surfaces or just trimmed surfaces?  Were the surfaces B-surfaces after being imported into UG or were they NURBS surfaces?  What type of surfaces were they coming out of CATIA?  Were the surfaces modeled with a tight tolerance in CATIA?

Personally, I'd stick with the Parasolid model, as that is native UG math, whereas STEP has different 'flavors', depending upon the software from which it was exported.

Tim Flater
Senior Designer
Enkei America, Inc.

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! Already a Member? Login


eBook - The Future of Product Development is Here
Looking to make the design and manufacturing of your products more agile? For engineering and manufacturing organizations, the need for digital transformation of product development processes just became more urgent than ever so we wanted to share an eBook that will help you build a practical roadmap for your journey. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close