3D scanning of parts

A 3D scan captures the entire surface of a part digitally as millions of points. Unlike reverse engineering, this service is mainly about documenting the exact geometry of an existing object, comparing it with the design model, or creating a digital copy for design, 3D printing and visualisation. It is used by engineers, manufacturers, designers, museums and restoration specialists.

Small and medium parts are scanned with structured-light or laser handheld scanners, which, depending on the model, achieve accuracy of a tenth of a millimetre or better. Large products and equipment are captured with terrestrial laser scanners (±2–6 mm). Shiny and transparent surfaces are prepared with a matting spray where necessary, and targets are placed on large objects.

The scan produces a watertight STL/OBJ mesh. On request we build a simplified or parametric CAD model from it, and compare it with the design model to produce a colour deviation map and inspection report. This is a reliable tool for production quality control, pre-assembly fit checks and detecting deformation.

When you need it

• Comparing a manufactured part with its design model
• Fit checks of assemblies before installation
• Digital copy for 3D printing or replicas
• Digitising museum objects and sculptures
• Documenting deformation and wear

What's included

• Assessing the object and required accuracy
• Surface preparation and target placement
• 3D scanning with handheld or terrestrial scanners
• Registering and cleaning scans
• Creating a watertight mesh
• CAD model on request
• Comparison with design and deviation map

How we work

1. Agreeing the task, accuracy and formats
2. Scanning (in our office or on site)
3. Data processing and mesh preparation
4. CAD model or inspection report
5. Delivering the files

Deliverables

• STL/OBJ mesh model
• CAD model on request (STEP, IGES)
• Colour deviation map and inspection report
• Point cloud files