gd&t tips - runout - vs concentricity
Post on 16-Sep-2015
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GD&T TIPS
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BacktoGD&TTipsRunoutvsCoaxiality(Concentricity)WheninDoubtUseRunout!
Avoidspecifyingconcentricity.Concentricityrequiresderivingthemedianlineofafeature.Allofthefeaturesshownbelowareconcentric.Usually,designsrequirethatafeatureberoundaswellasconcentriclikeexampleA.Abettergeometriccontrolisusuallycircularrunout.Circularrunoutcontrolscircularity(roundness)aswellasconcentricity.
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