A25 · Reference edition 2026.11
Probe access — Review and interpretation
A nominally clear measured feature may be inaccessible along the probe approach or withdrawal path. Include the whole inspection movement.
Scope and purpose
Review the record before drawing a conclusion. Look for missing context, ambiguous labels and claims that exceed the evidence. The purpose is to identify what can be understood from the record and what still requires a separate assessment.
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
Draw the approach envelope as a separate translucent region around the target feature.
| Reference record | Interpretation |
|---|---|
| A25 | Probe access |
| Scope and purpose | A nominally clear measured feature may be inaccessible along the probe approach or withdrawal path. Include the whole inspection movement. |
| Limits and interpretation | A static sketch does not prove collision-free operation on a particular machine. |
Review checklist
Read the record without relying on memory; check every label; identify uncertainty; decide whether a specialist review is required; retain the original observation.