A-R15

Base plate coordinates — Reference record

A coordinate grid is a location reference, not necessarily a dimensioning or tolerance system. Define its origin and orientation.

Base plate coordinates
Illustrative reference; not a tested product or a certification.
Reference recordWorking notes
OverviewBase plate coordinates
Practical exampleUse an origin marker, positive axes and a unique position label for every component stack.
Limits and interpretationA grid intersection alone does not specify a mounting thread or interface.
Document controlReference edition 2026.11
Measurements and examples are descriptive, not acceptance criteria.

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