1. 3D SCANNING TECHNOLOGIES IN MECHANICAL ENGINEERING AND MANUFACTURE Gábor Kimmel Computer engineering 3D Graphics Professional Days

2. 3D scanning is a process where a real-world object or enviroment is captured into a computer-based 3D model. Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture

3. AVAILABLE TECHNOLOGIES CONTACTNON-CONTACT ACTIVE(Ultrasound) Industrial CT LiDar Structured light (Ultrasoung) PASSIVETouch probeStereo cameras Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture

4. CLASSIC SOLUTIONS Slow Hard to scale Expensive Proven Accurate Simple Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture Touch probe Industrial CT Rare due to high cost Used mostly in various material tests

5. OPTICS-BASED TOOLS Not as accurate Numerous problems to be solved Fast Highly scalable Cheap Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture Measure with lasers or other light sources Used in geoinformatics since the 1970s LiDar, Structured light, Stereo camera systems

6. OPTICS-BASED TOOLS Fast Highly scalable Cheap Multitude of samples  better results Active research & development Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture

7. LIGHT RADAR (LIDAR) Measures using a laser and a sensor In focus of research since the 2000s Decent accuracy Room for improvement Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture

8. STRUCTURED LIGHT Structured = well-known Pattern projected on measured object Pattern deforms Comparison of original and deformed pattern Cheap to install Accuarcy has much to be desired Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture

9. STRUCTURED LIGHT Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture

10. COMPARISON Touch probeLiDar Measurement speed1x1,3-10x Resolution 100 nm – 10  m22–80  m Measurement uncertainty 0,3  m – 1,2  m1.9–12  m Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture

11. RESEARCH 3D printed objects from CAD model Creating „machine parts” Measuring manufacture errors Suboptimal G-code Material deform Using proper parameters for CAD files Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture

12. RESEARCH Measurement speed Accuracy Measurement uncertainty Resolution Computer resources 2 tools: MS Kinect & DAVID3D-based tool Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture

13. MS KINECT Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture IR Emitter CMOS camera IR camera

14. DAVID3D-BASED CONSTRUCTION Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture

15. DAVID3D-BASED CONSTRUCTION Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture NXT controller Laser module Camera

16. DAVID3D-BASED CONSTRUCTION Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture

17. RESULTS Kinect Not designed for this task Resolution too small Accurate measurement is not possible DAVID3D Weak laser  prone to errors due to ambient light Surface of measured object affects accuracy greatly Acceptable results (  2 mm) Decent measurement uncertainty Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture

18. RESULTS Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture

19. RESULTS Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture KinectDAVID3D Measurement speedAvg. 2 minutesAvg. 12 minutes Resolution -Dependent on camera (166,33 points/mm 2 @ 640x480) Measurement uncertainty -2mm

20. SYSTEM RESOURCES Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture

21. SUMMARY Primary reserach Unaccurate, but quick scanning Processing of data needs a lot of human input Device suitable for artistic purposes only Quick and easy to build Secondary research Touch probes still more accurate Difference between accuracy is becoming less noticable When will the time come: just as accurate and much faster Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture

22. Thank you for your attention! Gábor Kimmel | 3D Scanning Technologies in Mechanical Eengineering and Manufacture