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

One possible displacement of actual feature pattern.

FIG. 5-21 HOLE PATTERNS OF FIG. 5-19. TWO SINGLE-SEGMENT FEATURE CONTROL FRAMES WITH SECONDARY DATUM IN LOWER FEATURE CONTROL FRAME (CONT'D) Tolerance Zones for Three-Hole Pattern (Cont'd)

from datum C does not apply from datum C

One possible displacement of actual feature pattern.

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

to from datum B i.

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

Feature axes must 38 simultaneously lie within both tolerance zone cylinders

FIG. 5-21 HOLE PATTERNS OF FIG. 5-19. TWO SINGLE-SEGMENT FEATURE CONTROL FRAMES WITH SECONDARY DATUM IN LOWER FEATURE CONTROL FRAME (CONT'D) Tolerance Zones for Four-Hole Pattern

FIG. 5-21(f) I

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