A37 · Reference edition 2026.11
Base plate coordinates — Layout and sequence
A coordinate grid is a location reference, not necessarily a dimensioning or tolerance system. Define its origin and orientation.
Scope and purpose
Place the relevant elements in a visible order before completing the record. A diagram should distinguish position from sequence and should preserve the orientation used in the written notes. Review the example for a practical way to make the relationship explicit.
Working notes
This reference collection concerns light, offline dimensional-inspection layouts. It brings locating concepts, component descriptions and revision records together without substituting for an engineered fixture design. The drawings are original explanatory diagrams. Reference IDs identify documents, not commercially tested products. Read the scope and limitations alongside each example, and keep the actual part drawing and inspection requirements available when reviewing a proposed layout.
Practical example
Use an origin marker, positive axes and a unique position label for every component stack.
| Reference record | Interpretation |
|---|---|
| A37 | Base plate coordinates |
| Scope and purpose | A coordinate grid is a location reference, not necessarily a dimensioning or tolerance system. Define its origin and orientation. |
| Limits and interpretation | A grid intersection alone does not specify a mounting thread or interface. |
Review checklist
Identify the starting condition; mark the order or orientation; check that labels in the figure match the accompanying table.