Course code MašZ4045

Credit points 1.50

Computer Aided Design of Machines I

Total Hours in Course60

Number of hours for laboratory classes24

Independent study hours36

Date of course confirmation19.10.2011

Responsible UnitInstitute of Mechanics

Course developer


Imants Nulle

Dr. sc. ing.

Prior knowledge

LauZ2039, Engineering Graphics

Course abstract

The aim of the studying course is to get knowledge about computer aided design and possibility to use CAD software to solve engineering problems and process automatization. Students learn the rules of design and automatic creation of drawings.

Learning outcomes and their assessment

Knowledge – Students understand the principles of modelling and are familiar with methods of digital prototype design of parts and assemblies with several features and standard mates. They know the possibilities of automatic creation of parts and assemblies drawings. Knowledge is appreciated in tests and laboratory works.
Skills – Students know to design parts with several features, create automatic views and sections and perform drawings according LVS and ISO standards. Skills are appreciated in tests and laboratory works.

Competence – ability to apply professional knowledge and skills in practical work and studies to solve different engineering problems. Competence is appreciated in tests and laboratory works.

Course Content(Calendar)

1. Introduction. – 1h
2. The SolidWorks user Interface. – 1h
3. Sketching tools. Sketch entities. Sketch relations. Dimensioning. – 2h
4. Basic modelling. Extrusion. Fillets and Chamfers. – 2h
5. Revolved features. Design library. – 2h
6. Sweep and Loft Features. – 1h
7. Shelling and Ribs. – 1h
8. Test. Part modelling. – 2h
9. Making Drawings. Model views. Section views. Dimensions, Surface finish, Centerlines and Centermarks. – 2h
10. Sheet formats. Title block. Template file. – 1h
11. Weldments. – 1h
12. Sheet Metal. – 1h
13. Assembly modelling. Mate types and alignment. – 2h
14. Assembly drawings. Adding Balloons. Bill of materials. – 2h
15. Toolbox. – 1h

16. Test. Assembly modelling. – 2h

Requirements for awarding credit points

Students receive a final mark if they have successfully completed the tasks assigned in laboratory works and have passed 2 tests.
The tasks performed in the laboratory works have to be presented. Presentation includes short oral report of each finished task as well as answers to the questions about the theoretical aspects of this topic.
In the first test modelling of parts is required, but the second one an assembling of components is done. Theoretical knowledge is assessed as a test.

Description of the organization and tasks of students’ independent work

Advanced sketching.
Design of threaded parts – cosmetic, simplified, and schematic tread.
Modeling of casting part. Drawing.
Modeling and drawing of revolution solid.
Modeling of mechanism and creation assembly drawing.

Criteria for Evaluating Learning Outcomes

A student will get a successful mark on the test work if at least 50% of the tasks are properly solved.
The student receives high marks if the tasks performed in the laboratory and independent works are completed, well-designed and the student is able to answer the questions.

Compulsory reading

1. Nulle I., Dobelis M. SolidWorks pamati. E-studiju metodiskie materiāli studiju kursiem „Mašīnu datorizētā projektēšana” un “Datorprojektēšana”. 2018. 129 lpp. un 9 video materiāli.
2. Tickoo S. SolidWorks 2015 for designers. Schererville: CADCIM Technologies, 2015. 1066 p.

3. Tran P. SOLIDWORKS 2016. Intermediate skills. Mission, KS : SDC Publications, 2016. 365 p. ISBN 9781630570163.

Further reading

1. Howard W, Musto J. Introduction to Solid Modeling Using SolidWorks 2015: McGraw-Hill Education; 11 edition, 448 p. ISBN-10: 1259542114.

Periodicals and other sources

1. CAD/CAM/CAE Observer. Информационно - аналитический журнал. Междунар. журн. для руководителей и специалистов пром. предприятий и проектных орг. различных отраслей, разработчиков и пользователей САПР, преподавателей и студентов высш. и сред. спец. учеб. заведений. Rīga: CAD/CAM Media Publishing, 2000. ISSN 1407-7183.


The study course is included in the compulsory part of the 2nd level professional higher education study program "Machine Design and Manufacturing" of the Faculty of Engineering. 3rd study year 5th semester.