Info

Parallel

Parallel

Tolderancing Hole Patterns

Feature-relating tolerance zone cylinder

Datum plane A

Feature-relating tolerance zone cylinder

Datum plane A

Actual hole axis within both zones shown at Its maximum inclination to datum plane A

One possible displacement of actual feature pattern.

FIG. 5-20 HOLE PATTERNS OF FIG. 5-19 WITH SECONDARY DATUMS IN FEATURE-RELATING SEGMENTS OF COMPOSITE FEATURE CONTROL FRAMES (CONT'D) Tolerance ZoneĀ« for Three-Hole Pattern (Cont'd)

Tolderancing Hole PatternsPattern Feature Control Frame

00.8 pattern-locating tolerance -zone cylinder (4 zones, basically related to each other and basically located to the datums)

00.25 feature-relating tolerance zone cylinder (4 zones, basically related to each other and oriented to the datums)

One possible displacement of actual feature pattern.

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