Confirming Perpendicularity of Primary, Secondary & Tertiary Datums

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SUMMARY

The discussion centers on the necessity of perpendicularity among primary, secondary, and tertiary datums in engineering specifications. When a datum is specified with a perpendicular tolerance, it must conform to that requirement as indicated on the engineering print. The only exception noted is when dealing with a point in space, where confirming perpendicularity presents unique challenges. Adhering to these specifications is crucial for ensuring dimensional accuracy in manufacturing processes.

PREREQUISITES
  • Understanding of geometric dimensioning and tolerancing (GD&T)
  • Familiarity with engineering drawings and specifications
  • Knowledge of datum reference frames
  • Experience with measurement techniques for verifying perpendicularity
NEXT STEPS
  • Research geometric dimensioning and tolerancing (GD&T) principles
  • Learn about datum reference frame configurations
  • Explore measurement tools and techniques for confirming perpendicularity
  • Study the implications of tolerances in engineering specifications
USEFUL FOR

Engineers, quality control professionals, and manufacturing specialists involved in precision machining and dimensional analysis will benefit from this discussion.

saurya08
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Do the primary , secondary and tertiary datums need to be perpendicular to each other always ( when specified).
 
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if the datum is speced with perpendicular tolerance then they got to be. If its on the print..part must conform to it. The exception being a POINT in space..how do you confirm that it is perpendicular??
 

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