UG to CATIA Description
Information courtesy of:
Mike Sutton: Mechanical Engineer
CATIA Product Designer, Administrator
Driver Information & Controls - GPU, Kokomo Site
Phone: (765) 451-1757 (GM) 8-322-1757
Fax: (765) 451-7058 M/S 9151
Internet: masutton@mail.delcoelect.com
1) Validate all UG solids (filenames in UG should have not more than 16 digits) with all checks set
-STEP will fail if any face-face inconsistencies are found
2) Export solids to separate part files, limiting the file size to 1-2 megabytes (assemblies can be transferred)
3) Export solids using STEP AP203
4) Import solids to CATIA using STEP AP203
- General hint for tolerance setting (Dassault processor): 0,02mm (2m-model dimension in CATIA)
5) Transform volumes into solids using "SOLIDE + COMPLEX + VOLUME"
6) Extract a volume from the newly created solid using "SOLIDE + EXTRACT + VOLUME"
7) Hide the surfaces and trimmed faces using "NOSHOW OR NOPICK"
8) Delete the solid and volumes extracted from the solid
9) Delete all wireframes (don’t transfer wireframes by disabling the wireframe option in UG)
10) Compress the model using "ERASE + PACK"
11) Clean the model using the "IUA /CLN"
12) Move all faces and surfaces to the specified layers and create filters if required
13) Verify that the file size is within the limits that the customer can or is willing to receive
14) Create additional models if the file is not less than the maximum limit
If a volume is not created by AP203, all of the surfaces and 95% of all trimmed faces will be created. Faces limited on surfaces of revolutions present a problem in CATIA. The generating curve or line on a revolution surface has the same start and stop boundary, which the software cannot process. Break the surface into (2) surfaces using "LIMIT2 + SURFACE + BREAK" and "YES" to "BREAK AT PATCHES". Create faces on the (2) surfaces using "LIMIT2 + FACE + SURFACE" and create a volume using "LIMIT2 + VOLUME". Now repeat steps 5 thru 14.
* Note: Bold texts are CATIA functions
There is significant file growth from UG solids to CATIA solids. It is important to note that the customer can easily create solids from the faced models for enhanced analysis and downstream processes. CATIA face analysis provides no information. CATIA volume analysis provides volume, mass, area, center of gravity and moment of inertia. CATIA solid analysis provides all volume data plus the number of faces and the 2nd moment of inertia (radius of gyration).
Steps 6-9 are required if you want to delete the system generated planes that are linked to the faces. This process further reduces model size and removes all traces of having used the AP203 STEP Translator.
