Technical design

Physics, First Cycle
Educational Physics
1 year
first or second

Mitjan Kalin

Hours per week – 1. or 2. semester:
Content (Syllabus outline)

Fundamentals of technical drawing: technical drawing, types of drawings, drawing tools, drawing formats, folding, scale, lines, technical writing.

Drawing: 2D and 3D projections, views, hatching, cross-sections, wrinkles, invisible edges, details.

Dimensioning: lengths, diameters, radii, angles, curves, inclination, cone, narrowing, holes, groove, layout of the dimensions, parallel and serial dimensioning.

Labeling of the surface quality: micro-and macro-geometrical tolerance, definitions of the surface profiles, marking of the surface quality.

Tolerances and fits: deviations, tolerances of form, location, running, fits, fits systems, the size of the tolerance fields, the position of the tolerance fields, the choice of fits, the application of the fits in practice, recording of the deviations and tolerances.

Machine elements (drawing, nature, labeling, standards): threads, bolts, nuts, screw connection, washers, pins, dowels, groove shafts, bolts, cotter pins, snap rings, rivets, gears, gear pairs, sliding bearings, roller bearings.


V. Savnik, Tehniško risanje. TZS.
I. Prebil, Tehnična dokumentacija. TZS.
D. Whitehouse, Surfaces and their measurements. Hermes Penton Science, London, 2002.
G. Nieman, H. Winter, B.R. Hohn, Machinen-elemente. Springer, 2005.

Objectives and competences

Students will learn the basics of technical communication in the form of technical drawings and the basics of technical documentation. Standards in the field of technical documentation are presented. They also acquire the basic knowledge of the characteristics of the technical surfaces and of the fits and tolerances. In class, students draw several drawings of small mechanical parts, whereby they independently present the acquired knowledge.

Intended learning outcomes

Knowledge and understanding: A student independently presents and draws a technical object with all the necessary information about the dimensions, materials, quality, tolerances and other requirements.

Application: Design and understanding of the technical solutions in a standardized format.

Reflection: The ability to critically assess the suitability and optimality of specific technical solutions.

Transferable skills: The knowledge of technical standards is crucial for the cooperation with the technical staff in the design and construction of physical experiments.

Learning and teaching methods

Lectures, tutorials, homework (drawing).


Assessment of theoretical knowledge,
Assessment of practical work.
1-5 (negative grade), 6-10 (positive grade) (according to the statute of UL)

Lecturer's references
  1. POGAČNIK, Aljaž, KALIN, Mitjan. How to determine the number of asperity
    peaks, their radii and their heights for engineering surfaces : a critical
    appraisal. Wear. [Print ed.], 2013, vol. 300, iss. 1/2, str. 143-154, ilustr.,
    doi: 10.1016/j.wear.2013.01.105. [COBISS-SI-ID 12768795]
  2. KALIN, Mitjan. Designing tribological interface for efficient and green DLC
    lubrication : the role of coatings and lubricants. Tribol. online (Tokyo, Online),
    2012, vol. 7, no. 3, str. 112-118, ilustr., doi: 10.2474/trol.7.112. [COBISS-SIID
  3. MAJDIČ, Franc, PEZDIRNIK, Jože, KALIN, Mitjan. Razvojno preizkušanje
    vodnega zvezno delujočega drsniškega potnega ventila. Ventil (Ljubl.), 2009,
    letn. 15, št. 6, str. 516-524, ilustr. [COBISS-SI-ID 11255067]
  4. POGAČNIK, Aljaž, KALIN, Mitjan. Parameters influencing the running-in and
    long-term tribological behaviour of polyamide (PA) against polyacetal (POM)
    and steel. Wear. [Print ed.], 2012, vol. 290-291, str. 140-148, ilustr.,
    doi: 10.1016/j.wear.2012.04.017. [COBISS-SI-ID 12348699]
  5. KALIN, Mitjan, VIŽINTIN, Jože. The tribological performance of DLC-coated
    gears lubricated with biodegradable oil in various pinion/gear material
    combinations. Wear. [Print ed.], 2005, letn. 259, št. 7/12, str. 1270-
  6. [COBISS-SI-ID 8260891]