3d-measurement

Industry 4.0: 3D measurement technology in manufacturing

Tech

In 3D measurement using strip light, a line grid is projected onto the measurement object with a projector and deformed by the object geometry.The resulting deviation from the ideal line is recorded by two stereo cameras and the individual 3D coordinates are then calculated using a triangulation process.In order to fully capture a measurement object, it is often necessary to link several scans. This is usually done by applying additional marks or using the “best-fit” method.

Next level quality assurance through 3D measurement of components

Check easier and design faster so you can benefit from our 3D scan know-how as a long-standing industrial partner. From development to series production.

  • Material-independent high-resolution measurements
  • Meaningful measurement results
  • Precise measurement according to industry standards
  • High reproducibility
  • Subsequent measurement of individual dimensions
  • Certified quality
  • Available at short-notice

What results does the optical 3D measurement deliver?

STL or CAD data

We convert 3D scan data (STL) into high-quality CAD models using the reverse engineering process. And this means that they can be used for design purposes or CNC production .

Metrological evaluation

3D scan data work perfectly for quality control and analysis . As a result, we deliver a measurement report as a color comparison against CAD or a dimensional check according to the drawing .

High-precision 3D measurement technology

3D Scanworks relies on optical 3D metrology. The 3D scanner delivers perfect 3D scans in no time.

The high data quality is particularly evident in the precise representation of the smallest details and the finest radii. Besides, transparent and shiny surfaces can also be captured very well by the powerful light source.

In addition, the sensor constantly monitors itself during the 3D measurement and indicates when a new calibration is necessary.

Advantages of optical 3D measurement by 3D Scanworks

As a 3D scan service provider, we offer you the complete solution for optical 3D measurement of any component size, not only scanners. All forms and materials as well as external and internal geometries.

In addition, our robust 3D scanner is mobile and can therefore work on site at short notice.

3D Scanworks precise 3D scans are perfect for quality control and analysis. So the freely available evaluation software GOM-Inspect, validated by us, meets all of our customers’ requirements for a standard-compliant, modern inspection.

Measure and analyze your prototypes, then initial samples or series components with a color CAD comparison or the complete individual dimension check.

Do you need production-ready CAD data from existing components?

CAD data are often not kept up to date or are not available at all. Then our reverse engineering process is just right for you. Moreover, based on our many years of design experience, we provide our customers with the appropriate data formats that they can seamlessly transfer to their CAD programs.

Areas of application for optical 3D metrology

The demand for optical 3D measurement has increased significantly in recent years as many companies have recognized the corresponding potential. From product development to quality assurance to production, there are many possible uses so you can benefit a lot.

We advise you individually on your products so you benefit from our 3D component measurement.

Machine parts

Accelerated development and manufacturing of new products, not only for inspection.

  • Data creation for CNC or additive manufacturing
  • Constructive changes with native data formats
  • wear measurement
  • Inspection by form/position

Castings

Easy-to-understand results instead of lengthy tabular inspection reports, not only for CNC.

  • Inspection of warpage, shrinkage and wall thickness
  • Reproduction of existing components
  • Optimizing clamping for CNC machining
  • measurement control

Plastic parts

Start production faster and achieve high dimensional accuracy, not only for EMPB.

  • First sample inspection (EMPB) according to drawing
  • Series-accompanying test
  • Statistical trend analysis (Cp/Cpk or Pp/Ppk values)
  • New production of tools

Molds & Tools

No iteration loops thanks to the exact CAD database. But it’s not all.

  • Production of relocated or existing tools
  • Targeted tool correction
  • Repair of tool inserts
  • maintenance and optimization

The most common and generally accepted method of measuring the quality of optical systems is the modulation transfer function (MTF). This method is applicable to both the simplest lenses and lenses as complex as telecentric ones.

The lens MTF is actually a measurement of the lens’s ability to transfer contrast at the appropriate resolution from the subject to the image. When measuring MTF, the degree of image quality degradation of the test pattern caused by the tested lens can assess. Therefore, the output from the lens is compared with the scanned original. MTF is also a way to combine resolution and contrast into one specification.

As a test pattern, the MTF uses a line raster consisting of a sequence of black lines separated by equally wide white spaces. The test pattern must have a sharp transition between black and white. The individual rasters differ in the number of line-gap pairs per millimeter. The number of these pairs is called the spatial frequency.

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