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GD&T training | Profile of a line symbol

Profile of a line describes a tolerance zone around any curved profile or shape. It is usually called out on a profile surface, like a radius on a part, it specify how much that cross-section could vary from a true curved radius.

 

line profile GD&T

Profile of a line can be measured using a dial gauge with some holding fixtures along the specific cross-section area. Because of the cross-sections of the feature, the measurement points can be specified on the drawing. Profile is usually measured using a CMM for more complex geometric.

 

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