Parts without drawings
Create a digital reference when original CAD is missing or a component has been discontinued.
From physical part to digital geometry
3D scanning and reverse engineering
Digitize existing objects for measurement, documentation, adaptation or development of a new CAD model.
- Input
- Physical object
- Base output
- Point cloud or mesh
- Optional
- Reverse-engineered CAD
3D scanning captures an object's surface as a digital point cloud or mesh. It is useful when drawings are missing, but scan data is not automatically a parametric CAD model. We define the deliverable according to whether you need documentation, comparison, visualization or manufacturable geometry.
What scanned data can support
Fit against existing forms
Capture organic or complex surfaces that a new component needs to meet.
Documentation and comparison
Preserve geometry digitally or compare a physical shape with a design reference.
Mesh and CAD serve different purposes
A mesh describes the measured surface as triangles and is useful for visualization, reference and some printing workflows. Parametric CAD instead uses defined planes, cylinders and features that can be dimensioned and edited.
Reverse engineering therefore involves more than scanning. Accuracy requirements, wear, symmetry and intended use determine how much interpretation and rebuilding is needed.
- Decide whether the deliverable is a mesh or editable CAD
- Identify functionally important surfaces and dimensions
- Reflective or transparent surfaces may need preparation
From object to useful model
- 01
Assessment
We review size, surface, access and the desired deliverable.
- 02
Data capture
The object is scanned from several angles and the measurements aligned and cleaned.
- 03
Delivery or CAD work
Scan data is delivered as a mesh or used as reference for a new CAD model.
What we need to know about the object
Photos with a known size reference are often enough for an initial assessment.
- Photos from multiple angles
- Approximate dimensions
- Material, colour and surface
- Desired file format
- Functionally important surfaces
- How the model will be used
3D scanning questions
Does a scan become an editable CAD file?
Not automatically. The base result is usually a mesh. Editable parametric CAD requires separate reverse-engineering work to interpret and rebuild the geometry.
Can every object be scanned?
Most objects can be scanned, but transparent, reflective, very dark or inaccessible surfaces may require surface preparation, targets or additional measurement.
How accurate is scanning?
It depends on object size and surface, scanner, setup and processing. Identify critical dimensions so the appropriate method can be chosen.
Can you rebuild a worn part?
Yes, but wear must be interpreted. Symmetry, mating features and known dimensions help reconstruct intended geometry rather than simply copying damage.
Which files can you deliver?
Meshes are commonly supplied as STL or OBJ. If the project includes reverse engineering, STEP or another CAD format can be agreed.
Must I ship the object to you?
That depends on size, accuracy needs and the planned workflow. Send photos and dimensions so we can assess the best way to capture it.
After the scan
Have an object without drawings?
Send photos, approximate dimensions and explain how the digital model will be used.
Request a quote