VŠTE:N_KOM Contact and optical 3D measure - Course Information

N_KOM Contact and optical 3D measurement and virtualization of objects

Extent and Intensity

1/2/0. 5 credit(s). Type of Completion: zk (examination).

Teacher(s)

doc. Ing. Karel Gryc, MBA, Ph.D. (seminar tutor)
doc. Ing. Ladislav Socha, MBA, Ph.D. (seminar tutor)

Guaranteed by

doc. Ing. Karel Gryc, MBA, Ph.D.
The Department of Mechanical Engineering – Faculty of Technology – Rector – Institute of Technology and Business in České Budějovice
Supplier department: The Department of Mechanical Engineering – Faculty of Technology – Rector – Institute of Technology and Business in České Budějovice

Prerequisites (in Czech)

MAX_PREZENCNICH ( 10 ) && FORMA ( P )

Course Enrolment Limitations

The course is offered to students of any study field.
The capacity limit for the course is 10 student(s).
Current registration and enrolment status: enrolled: 2/10, only registered: 0/10

Course objectives supported by learning outcomes

The aim of the course is to significantly expand students' knowledge of modern methods of 3D measurement. The first part of the course is focused on the application of contact 3D measurement using touch probes on a coordinate measuring device, while the system of setting the measuring program, measurement and evaluation of GD&T according to selected standards is linked to professional software Polyworks. The second part of the course is focused on the application of optical, ie non-contact, 3D measurement methods, which significantly extend the potential of dimensional control of scanned objects to the reference object. Obtaining a dense network of measured points (point clouds usually exceed millions of measured positions) also allows virtualization of real objects without prior reference. These tools can be used very effectively, among other things, in reverse engineering. Therefore, part of the course will also focus on the transformation of polygonal models into full-fledged 3D CAD objects.

Learning outcomes

The student will expand his knowledge, which he can later apply in the field of modern methods of 3D measurement.

Syllabus

• 1. Basic acquaintance with 3D measuring device THOME Präzision RAPID-Plus CNC and software POLYWORKS for measuring and evaluating dimensions with tolerances and deviations of shape and position according to the ISO 1101 standard, assignment of team projects.
• 2. Basics: element measurement, CAD data import, definition and measurement of elements on CAD data, alignment to CAD model, creation of coordinate systems.
• 3. Creating a measuring program on specified objects in the Polyworks environment. Simulation of the measurement process and program debugging, including protocol preparation.
• 4. Complex measurement of objects according to specified requirements into a debugged program in Polyworks software.
• 5. Evaluation of measured values, GD&T, program mirroring, CAD models, elements. Logging of measured data (modification of protocols).
• 6. Presentation of team projects. Consultation of weak points of individual projects. Recapitulation of knowledge for 3D measuring device THOME Präzision RAPID-Plus CNC. Continuous test.
• 7. Basic acquaintance with the ROMER Absolute Arm mobile measuring system with integrated laser scanner in the application of POLYWORKS software, assignment of team projects, implementation of tactile measurement in an analogous mobile system: basics of element measurement, CAD data import, definition and measurement of elements on CAD data, CAD models, creation of coordinate systems.
• 8. Scanning with a laser scanner, extraction of elements from point clouds. Construction of elements from measured elements. Evaluation of measured values, GD&T.
• 9. Program mirroring, CAD models, elements, logging of measured data (protocol modification), arm transfer during measurement, advanced alignment (rps, best fit). Export of measurement data to CAD systems in the form of STL files.
• 10. Creating a measuring program on specified parts in the Polyworks environment. Simulation of the measurement process and program debugging, including protocol preparation.
• 11. Complex measurement of objects according to specified requirements into a debugged program in Polyworks software.
• 12-13. Presentation of team projects. Consultation of weak points of individual projects. Recapitulation of a part of the course for measuring with the ROMER Absolute Arm system with integrated laser scanner when applying POLYWORKS software. Credit test.

Forms of Teaching

Lecture
Seminar

Teaching Methods

Frontal Teaching
Group Teaching - Competition
Project Teaching
Brainstorming
Critical Thinking
Teaching Supported by Multimedia Technologies

Student Workload

Activities	Number of Hours of Study Workload
	Daily Study	Combined Study
Continuous control and scoring of project work	5
Preparation for the Mid-term Test	13
Preparation for Seminars, Exercises, Tutorial	13
Preparation for the Final Test	26
Seminar project	34
Attendance on Lectures	13
Attendance on Seminars/Exercises/Tutorial/Excursion	26
Total:	130	0

Assessment Methods and Assesment Rate

Test – final
Project – individual 25 %
Continuous control and scoring of project work 5 %

Exam conditions

Continuous control and scoring of project work (5%) Semester project (25%) Final test (70%) To successfully complete the course, it is necessary to meet the min. 70% of 100.

Language of instruction

Czech

Teacher's information

Attendance at classes in all forms is governed by a separate internal standard of VŠTE (Records of student attendance at VŠTE). For full-time students, 70% attendance is required for contact classes, ie everything except lectures.

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