3D digitalization and parts measurement

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Optical 3D scanner ATOS II 400

Department of manufacturing systems has a proximity optical ATOS II 400 3D scanner, design for swift digitalization of real objects with dimensions from a few millimeters to several meters. This device transmits surface of a real object to 3D graphic interface, where you can modify the model and model the modified one. By gaining data this way, we can generate files for production and the measure the model again, and compare it with the original one.

ATOS system for digitalization of a surface uses Projection moiré topography method, captured by two digital cameras with high-definition optic chip (1,4MPx for each). High-performance stereo method of capturing offers high definition, while flexibility of a measuring volume enables ATOS to make an accurate and effective quality control. The widest use of ATOS system is in CAD, CAM, and FEM, where we need real objects measurement and their comparing to theoretical model. We are able to link individual pictures into one unit and measure even large and complex objects this way. Output of a measurement is an ultrahigh-quality STL data file or a file of 3D coordination of dots (dot cloud). Software enables to save cuts, contour line, or output quality protocol as well.

Advantages

Swift measuring

High data density (up to 28 dots on a square mm and 1.4 million of dots on one take

System flexibility (linking individual snaps)

Ability to measure even gloss and transparent objects (after a safe finishing)

Ability to measure a soft surface

REVscan 3D optical scanner

Another way of panning shape of an object using optics is a REVscan scanner, which use dual laser strips projection. Reflection of these lasers of scanned by two cameras. Following data editing and any more measurement is done by software made by ATOS. Data usage is the same as data retrieved using ATOS. Advantage of this scanner is higher mobility, which is, unfortunately, redeemed by lower precision. This precision is about 0.1 mm with REVscan scanners.

Touch measurement

Our department is as well equipped with MicroScribe 3DX system. This system is used for scanning the surface by using stylus placed at the end of an arm. Computer connected to this system writes down position of the stylus when the pedal is pushed. After that, Rhinoceros software is creating and object image composed of coordinates of individual dots, curves, or even whole surfaces.

Parameters

Precision: 0.23 mm

Measuring range: 60 cm

Output: CAD data

Very precise measurements can be done on a coordinate measuring table, equipped with a board of polished granite, providing precise measurement of tight objects. Dimensions of the object are scanned by a probe with a spherical, calibrated tip with diameter of 1 mm. Data from the probe are panned by a computer, and then saved as a text file by a utility software.