Basic

Rotation controlled by datum center plane C

One possible displacement of feature-relating tolerance zone framework (FRTZF) relative to pattern-locating tolerance zone framework (PLTZF).

Unusable area

Actual feature axis shown at its maximum inclination

Unusable area

One possible displacement of actual feature axis at MMC. The actual feature axis must be within both tolerance cylinders. The feature pattern, as a group, may be displaced within the usable confines of the feature-relating tolerance cylinders

Feature

Pattern-locating tolerance zone cylinder

Feature

Pattern-locating tolerance zone cylinder

Pattern Locating Tolerance Zone
Feature-relating tolerance zone cylinder

One possible displacement of actual feature pattern (one hole shown).

FIG. 5-26 RADIAL HOLE PATTERN LOCATED BY TWO SINGLE-SEGMENT FEATURE CONTROL FRAMES (CONT'D) Tolerance Zones for Radial Hole Pattern (Confd)

Datum plana C

Kontur Schiff

Pattern-locating tolerance zone cylinder

180 from datum plane A

tolerance zone cylinder

Feature

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