Turn critical features into inspection items
Use the released drawing to identify functional dimensions and construction details. Separate visual checks from dimensional measurement, electrical test, and destructive analysis. State the applicable acceptance document and agreed exceptions. An instruction to inspect everything gives less useful direction than a clear list of critical characteristics and the evidence each requires.
Inspection-to-function map
| Planning item | Question | Required record |
|---|---|---|
| Terminal interface | Will the mating region meet the connector drawing? | Thickness and critical geometry results |
| Openings | Is the required metal exposed and clean? | Defined visual or dimensional record |
| Reinforcement | Is the support on the correct side and position? | Alignment and construction confirmation |
| Conductor condition | Does the part meet the agreed acceptance basis? | Traceable examination and disposition |
Control how flexible parts are measured
Define datums, restraint, viewing side, and measurement stage. The tolerance guide explains why free branches and local terminal sections need different treatment. Agree how parts are supported without masking relevant defects or distorting geometry. Include access and lighting considerations for features that become hidden after reinforcement or assembly.
Make reporting usable for acceptance
Decide which checks require recorded values, images, lot-level summaries, or other evidence. Establish who can approve deviations and how suspect parts are identified while a decision is pending. Tie results to the actual material and board revision. Feed recurring findings back into drawing clarity, process control, or design changes rather than accumulating reports that cannot drive action.
Before you release the design
- Mark critical characteristics before requesting the build.
- Agree sampling and recorded evidence with the responsible parties.
- Define support and datums for flexible dimensional checks.
- Link deviations to an authorized disposition and affected lots.
Watch points
- Visual inspection alone cannot establish every buried connection or service-life requirement.
Practical questions
Does a first-article report replace production inspection?
It can establish initial evidence for a defined build. Agree what controls and checks continue for recurring lots and what changes trigger a renewed first-article review.
Should inspection happen before or after assembly?
Use stages that expose the relevant features. Bare-board geometry and material interfaces may need earlier checks, while joints and installed fit require later examination.
Technical references
References support the material or design context. Check the exact grade, part number, document revision and project conditions before release.Updated 27 September 2026 · Technical content policy · Engineering guidance supports project review; the agreed drawing defines the build.