Parallelism Applied with Profile Tolerance

Profile locates a surface while parallelism refines the orientation of a feature. This video shows the differences in these tow symbols and how they may be used together to offer the most manufacturing tolerance and still maintain function. A practical example is used to illustrate the concepts. Inspection data helps show the measurement differences. The concepts are per ASME Y14.5 but also applies the same in ISO-GPS.

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#GD&T #geometric tolerance #Y14.5-2018 #flatness #perpendicularity