LMC is that condition of a part or feature which contains the minimum amount of material, e.g. maximum size hole or a minimum size shaft.
Circumstances do arise where, for example, a designer would require to limit the minimum wall thickness between a hole and the side of a component. In such a case we need to control the least material condition where a part contains the minimum amount of material.
The appropriate tolerance would then be quoted, followed by the letter L inside a circle L .
Generally such examples are very few. The applications which follow cover the more widely found conditions of MMC.
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