Drawing-based dimensional inspection
Drawing-based dimensional inspection
Material Properties · Physical Properties
Coordinate Measuring Machine Dimensional Metrology (CMM)
CMM dimensional inspection against CAD or drawings, with datums, tolerances, accessible features and the measurement report agreed before quotation.
- Price
- Request Quote Scope reviewed before quotationA £45 service fee applies to orders under £300, excluding VAT.
- Turnaround
- 8–12 working days Preparation and scope dependent
- Available platforms
- ZEISS CONTURA
- Typical outputs
- Dimension and deviation tableAgreed tolerance assessmentAnnotated feature referencesAlignment and probing record
Why this service
What CMM can help you understand
Coordinate metrology measures defined component features in an agreed reference frame. Inspection planning starts with the drawing revision, datums and tolerances, rather than a generic material-property test.
Datum and geometric-tolerance review
Datum and geometric-tolerance review
Component-to-CAD comparison
Component-to-CAD comparison
Choose the scope
Start from the question, not the tool
The method, preparation route and reporting depth depend on what you need to decide.
Drawing-based dimensional inspection
Drawing-based dimensional inspection
- Best used when
- Drawing-based dimensional inspection
- Typical result
- Dimension and deviation table
- Preparation note
- Inaccessible features, compliant parts and uncertain datums can limit the inspection.
Datum and geometric-tolerance review
Datum and geometric-tolerance review
- Best used when
- Datum and geometric-tolerance review
- Typical result
- Agreed tolerance assessment
- Preparation note
- Pass/fail statements need agreed tolerances and an applicable decision rule; measurement uncertainty is reviewed for the task.
Component-to-CAD comparison
Component-to-CAD comparison
- Best used when
- Component-to-CAD comparison
- Typical result
- Annotated feature references
- Preparation note
- Inaccessible features, compliant parts and uncertain datums can limit the inspection.
Common outputs
A result package matched to the decision you need to make
Fields, conditions, processing and file formats are confirmed before work begins.
Dimension and deviation table reported with the agreed units, sample reference and measurement conditions.
Agreed tolerance assessment supplied in a labelled format suitable for direct sample or condition comparison.
Annotated feature references provided with the processing basis and quality checks agreed during technical review.
Alignment and probing record included when selected in the confirmed reporting scope.
Sample requirements
What to provide before work begins
Provide representative, clearly labelled samples and identify the decision, feature or comparison that matters.
| Suitable sample | Submission requirement | Planning note |
|---|---|---|
| Stable solid components | Provide the drawing revision or CAD model, units, datums and nominated dimensions. | Inaccessible features, compliant parts and uncertain datums can limit the inspection. |
| Fixtures and assembled parts with accessible features | Identify tolerances, feature count, part quantity and any required report format. | Pass/fail statements need agreed tolerances and an applicable decision rule; measurement uncertainty is reviewed for the task. |
| Stable solid components | State part dimensions, material, surface condition, fixturing constraints and probing access. | Inaccessible features, compliant parts and uncertain datums can limit the inspection. |
Objective: state the decision, comparison or acceptance criterion the work must support.
Handling and access: declare hazards, instability, confidentiality, file constraints or special logistics before dispatch or transfer.
Questions and answers
Common planning decisions
Short answers to issues that can change preparation, scope, timing or interpretation.
Can I enquire without CAD?
Yes. Supply a dimensioned drawing or identify the features and reference frame. The laboratory reviews whether a defensible inspection plan can be defined.
Does the report cover every feature?
Only the nominated and accepted features are inspected. Agree tolerances, datum alignment and any tolerance-assessment decision rule before testing.
Configure the service
Send the information needed to scope CMM correctly
- Sample form, material, dimensions and quantity
- Feature or decision the result must address
- Required comparison, acceptance criterion or reference
- Preferred output and reporting depth
CMM analysisRequest Quote
A £45 service fee applies to orders under £300, excluding VAT.
Typical turnaround: 8–12 working days
Configure & Book