Asked by Charles Griffey on May 19, 2024
Verified
When the MMC or LMC modifying symbol is not shown in the feature control frame, it is understood that RFS applies.
MMC
Maximum Material Condition, a concept in tolerance specifications indicating the limit state where a part contains the maximum amount of material within its tolerance limits.
LMC
Least Material Condition, the condition of a part where it contains the minimum amount of material yet still meets its dimensional specification, often related to tolerances in manufacturing.
RFS
Regardless of Feature Size; a condition where the tolerance or location of part features is not affected by the feature size.
- Understand the basic principles of geometric dimensioning and tolerancing (GD&T).
- Comprehend the effects of maximum material condition (MMC) and least material condition (LMC) on feature control.
Verified Answer
Learning Objectives
- Understand the basic principles of geometric dimensioning and tolerancing (GD&T).
- Comprehend the effects of maximum material condition (MMC) and least material condition (LMC) on feature control.
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