Universidade Nova de Lisboa

Universidade Nova de Lisboa

Faculdade de Ciências e Tecnologia

Computer Aided Technical Drawing

Code

10413

Academic unit

Faculdade de Ciências e Tecnologia

Department

Departamento de Ciências dos Materiais

Credits

3.0

Teacher in charge

Carlos Alberto Nunes de Carvalho, Guilherme António Rodrigues Lavareda

Weekly hours

3

Total hours

33

Teaching language

Português

Objectives

- To draw the orthogonal projections of a particular piece.

- To choose the sectioning planes and their cutting surfaces, necessary for a perfect understanding of the drawing.

- To recognize the drawing elements that must not be cutted and represent them.

- To recognize the drawing elements where dimensioning must be done.

- To draw the orthogonal projections of a particular piece, using a CAD software tool.

- To buid a 3D model from the orthogonal projections of a particular piece, using a CAD software tool.

Prerequisites

Basic knowledge of drawing and geometry.

Basic knowledge of the Microsoft Windows 7 / 8 operative system.

Subject matter

PART I - BASIC TECHNICAL DRAWING

  • DRAFTING TABLE. 
  • TECHNICAL PENCILS AND PENS.
  • TOOLS FOR DRAWING: rulers; compasses; triangles; t-squares,.......
  • TYPES OF LINES : visible; hidden; center; cutting plane; section,....
  • ORTHOGRAPHIC PROJECTIONS: ISO and AMERICAN standards.
  • AUXILIARY VIEWS.
  • INTERSECTIONS.
  • CUTS and SECTIONS: areas on cuts and sections.
  • REPRESENTATION OF SCREW PARTS/INSERTS.
  • DIMENSIONING: linear and angular dimensions.
  • TOLERANCES.
  • PERSPECTIVE PROJECTIONS.

PART II -COMPUTER-AIDED DRAWING (CAD):

  • Basic tools. Coordinate systems.
  • 2D drawings - entity creation and edition. Entity grouping. Advanced tools.
  • Sectioning and dimensioning.
  • 3D drawings
  • Solid modeling

Bibliography

  • L. Veiga da Cunha, "Desenho Técnico", 14ª Edição, Fundação Calouste Gulbenkian (2008).

 COMPLEMENTARY:

  • Arlindo Silva, João Dias e Luís Sousa, "Desenho Técnico Moderno", 11ª Edição, Lidel (2011).
  • Randy H. Shih, "Exploring DraftSight", SDC Publications (2012).

Teaching method

Classes will include a theory part, followed by the execution of exercise drawings or the drawing of a small metallic piece.

Evaluation method

Part I – Basic Technical Drawing (TP):

 Ongoing assessment :

 - 2 Tests (T1 e T2).

 - Exemption of final exam obtained with test average (TA) greater than 9.5.

 Assessment by Final Examination:

 - Examination test (E).

 

Part II – Computer Aided Design (Computer Lab.)

 - CAD Assessment  (CAD)

 

Final classification:

 - With exemption of final exam:60% MT + 40% CAD.

 - Without exemption of final exam: 60% E + 40% CAD.

Courses