3D scanning turns a physical object into a digital 3D model. Instead of measuring with a tape or calipers, the scanner captures the surface and creates a digital copy of it.
How scanning works
We use a structured-light scanner. It projects a pattern of light onto the object and calculates the shape of the surface from how the pattern is deformed. The data is then cleaned and aligned. The output is a model in STL, OBJ or PLY format.
Reverse engineering
This is the most common reason people use scanning: the drawing is missing, or the part is damaged and a replacement is no longer made. We scan the existing part, create its model and make a replacement from it. If we know where the original part was weak, we can also improve it.
Part inspection
A scan can be compared with the original CAD model. A colour deviation map shows where the manufactured part differs from the design. It is useful when accepting parts from a supplier or checking your own production.
Other uses
- Culture and art: digital copies of sculptures, historical objects or trophies.
- Ergonomics and aids: a basis for custom-made aids.
- Design: a scan of an existing object as a starting point for modification or production.
- Building and engineering: measuring rooms or machines for reconstruction.
Limits of scanning
Shiny surfaces must be treated with a special matting spray before scanning, and transparent objects must also be coated with matt spray. We assess each case individually.
A scan is a polygon mesh (STL, OBJ). If you need a parametric model for further editing in CAD, that is separate modelling work.
Where we scan
You can bring or send smaller objects. For larger pieces or machines, we can scan on site, as in the project with a disassembled sheet-metal bending machine.
What next
A scan is only the beginning. From the digital model we can continue to 3D printing, CNC milling or technical documentation, without you having to pass files between suppliers.
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