According to a precision assembly technique, a first subassembly is precisely aligned relative to a plurality of {HEAD ~ alignment features} in {TAIL ~ an alignment fixture} and at least three non coplanar flexures having complementary alignment features are located with respect to corresponding alignment features on the alignment fixture and mechanically attached to the first subassembly 
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According to a precision assembly technique , a first subassembly is precisely aligned relative to a plurality of { HEAD ~ alignment features } in { TAIL ~ an alignment fixture } and at least three non coplanar flexures having complementary alignment features are located with respect to corresponding alignment features on the alignment fixture and mechanically attached to the first subassembly
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