When a curve, or set of curves, is Extruded using the option 'Body Type =
Solid', the result is a sheet body. The curve(s) seem to form a closed loop.
Why is the Extrude feature creating a sheet body instead of a solid body?
Solution
There could be a gap in the section of curves that prevents it from being
considered a closed loop.
To locate the gap in the section being Extruded, follow these instructions:
1. In the Part Navigator, select the 'Extrude' feature.
2. MouseButton3-->Edit with Rollback.
NOTE: Do not use 'MouseButton3-->Edit Parameters'. This option will not
show the information needed.
3. While in the 'Edit with Rollback' state, view the section being Extruded.
4. Any gaps in the section will be marked with a large asterisk (*) at the
endpoint of the curve. Modify the section of curves to close all gaps
in the locations indicated by the asterisks.
NOTE: A complete closed Extrude section will be free from asterisks.
Once the Extrude section is free from asterisks, it should form a solid body.
Notes and References
Hardware/Software Configuration
Platform: all
OS: n/a
OS Version: n/a
Product: NX
Application: DESIGN
Version: V7.5.5
Function: FEATURE_MODEL
Ref: 002-7004921