A36 · Reference edition 2026.11
Base plate coordinates — Definition and boundaries
A coordinate grid is a location reference, not necessarily a dimensioning or tolerance system. Define its origin and orientation.
Scope and purpose
Start by separating the named concept from adjacent concepts. Use the observation below to identify the question the record is intended to answer. Read the caution before applying the example. A definition is useful only when another reader can tell what falls outside it.
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 |
|---|---|
| A36 | 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
Write a one-sentence scope statement; identify a neighbouring concept; record what the example does not establish.