Explain why the location of a feature control frame on a drawing affects its interpretation.
What will be an ideal response?
ANS:
A feature control frame will have an entirely different interpretation if it is applied to a surface or to a feature of size. It is important to be able to understand whether a feature control frame applies to a surface or to a feature of size. There are several conventions on feature control frame placement that indicate what the feature control frame applies to:
A feature control frame applies to a surface when it is placed on a drawing such that it is attached to the part surface or its extension line, or has a leader line pointing to the part surface.
A feature control frame applies to a feature of size when it is placed on a drawing such that it is associated with a size dimension or the leader line of a size dimension.
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