3D measurements

3D measurements using 3D scanning and CT computed tomography

3D measurements make it possible to comprehensively verify the dimensions and geometry of a part based on spatial data. The service enables comparison of the actual component with the CAD model and analysis of dimensional deviations.

At SGP Quality Lab, we use 3D scanning and CT computed tomography to measure parts with complex geometries, irregular shapes and surfaces that are difficult to verify using traditional methods.

This solution is particularly useful when a detailed analysis of the entire component is required, not only selected measurement points.

When is it worth carrying out 3D measurements?

3D measurements are suitable where a more complete analysis of a part’s shape, dimensions and deviations is needed.

The service is useful, among others, for:

• inspecting parts with complex geometries,
• analyzing components that are difficult to measure,
• verifying irregular surfaces,
• comparing the actual part with the CAD model,
• analyzing dimensional deviations,
• checking parts after production,
• evaluating first articles,
• analyzing the causes of non-conformities,
• supporting engineering, quality and implementation projects.

Measurement where other methods have limitations

3D scanning and CT computed tomography make it possible to analyze part geometry in areas that may be difficult or impossible to check using tactile methods.

This applies in particular to:

• hard-to-reach surfaces,
• complex shapes,
• parts with irregular geometry,
• internal areas,
• components that cannot be easily verified using conventional CMM measurement.

As a result, 3D measurements provide a broader view of the actual condition of the part and make it easier to assess its conformity with design requirements.

What can be checked?

The measurement scope is selected according to the part, technical documentation and purpose of the inspection.

As part of the service, it is possible to verify, among others:

• geometry conformity with the CAD model,
• dimensional deviations,
• surface shape,
• part deformations,
• differences between the design model and the actual component,
• areas that are difficult to access for tactile measurements,
• selected geometric characteristics indicated by the client.

Comparison of the part with the CAD model

One of the most important advantages of 3D measurements is the ability to compare the actual component with the CAD model.

On this basis, it is possible to check where the part meets design assumptions and where deviations occur. Such analysis helps determine more quickly whether the problem results from the production process, design changes, material deformation or manufacturing errors.

Analysis based on a mesh

Data obtained during 3D scanning or CT computed tomography can be processed as a mesh. This makes it possible to reproduce the actual shape of the part and use it for further dimensional analysis.

The mesh can support:

• part conformity inspection,
• comparison with CAD documentation,
• deviation analysis,
• identification of problem areas,
• quality documentation,
• further engineering work.

What does 3D measurement provide?

A more complete view of the part

3D measurement makes it possible to analyze not only individual points, but the entire geometry of the component. This makes it easier to detect deformations, displacements and deviations.

Ability to measure hard-to-reach areas

3D scanning and CT make it possible to check areas that may be problematic for conventional measurement methods.

Comparison of reality with the design

Measurement data can be compared with the CAD model, which makes it easier to assess conformity of execution with design assumptions.

Support in non-conformity analysis

3D measurements help identify the source of a problem more quickly and provide the data needed for corrective actions.

Documentation for technical decisions

Measurement results can be used by quality, production, technology and engineering departments.

What does the service process look like?

1. Sending an inquiry

The client provides information about the part, technical documentation, CAD model if available, and the purpose of the measurement.

2. Selection of the measurement method

Based on the part and scope of analysis, we select the appropriate method: 3D scanning, CT computed tomography or a combination of both approaches.

3. Performing the measurement

We obtain spatial data that enables us to reproduce the actual geometry of the component.

4. Data processing

The data is analyzed based on the mesh, CAD model or specified measurement requirements.

5. Delivering the results

The client receives results that can be used to assess conformity, analyze deviations, handle complaints, optimize the process or support further design work.

Who is this service for?

3D measurements are intended for companies that need a precise analysis of part geometry, especially when conventional measurement methods are not sufficient.

The service is most often used by:

• quality departments,
• engineering departments,
• technology departments,
• production departments,
• design engineers,
• component suppliers,
• manufacturing companies,
• companies carrying out implementation or complaint-related projects.

Contact us

Do you need to inspect a part, compare it with a CAD model or analyze dimensional deviations?

Send us your technical documentation, CAD model or problem description. We will select the measurement method according to the part, purpose of the inspection and project requirements.

Ask about 3D measurements at SGP Quality Lab.