Downloaded from https://www.everyspec.com APPENDIX C MIL-STD-31000A C.7.7.9 Thin Solid Volume (G-SO-NA) Definition: A narrow portion of the volume of a solid. Measurement: Minimum distance between relatively parallel faces on opposite sides of the solid. Effects of condition on CAD data quality for manufacturing: This condition is difficult to manufacture and is usually unintentional – not design intent. Recommended correction: Modify the neighboring features to increase the thickness of the solid. C.7.8 Assembly structure quality criteria C.7.8.1 Embedded Assemblies (G-AS-EM) Definition:
Two or more instances of the same sub-assembly in an assembly occupy the same physical space and have the same orientation. Measurement: The number of duplicated instances. Effects of condition on CAD data quality for manufacturing: This condition is unrealistic and causes confusion in the structure of the model. It produces incorrect assembly mass properties. Recommended correction: This condition is usually caused when two assemblies define the same sub-assembly then cause the duplication when included into a higher-level assembly. Remove one sub-assembly instance from one of the lower-level assemblies. C.7.8.2 Embedded Parts (G-PT-EM) Definition:
Two or more instances of the same part in an assembly occupy the same physical space and have the same orientation. Measurement: The number of duplicated instances. Effects of condition on CAD data quality for manufacturing: This condition is unrealistic and causes confusion in the structure of the model. It produces incorrect assembly mass properties. Recommended correction: This condition is usually caused when two sub-assemblies define the same part instance then cause the duplication when included into a parent assembly. Remove one part instance from one of the sub-assemblies. C.7.8.3 Missing Part (G-PT-MI) Definition:
An assembly part instance references a part model which does not exist. Measurement: The criterion is false if any occurrences of this condition exist in the model. 124