Computer Aided Technical Drawing
- 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.
João Paulo Heitor Godinho Canejo, João Paulo Miranda Ribeiro Borges, Manuel João Dias Mendes
Weekly - 3
Total - 33
Basic knowledge of drawing and geometry.
Basic knowledge of the Microsoft Windows 7, 8 or 10 operative system.
L. Veiga da Cunha, "Desenho Técnico", 15ª Edição, Fundação Calouste Gulbenkian (2010).
Arlindo Silva, João Dias e Luís Sousa, "Desenho Técnico Moderno", 11ª Edição, Lidel (2011).
Randy H. Shih, "Exploring DraftSight", SDC Publications (2012).
Part I - Initial part of the lesson with exposition of the subjects using examples drawn on the blackboard. Final part with execution of a drawing by students where they apply the knowledge acquired in the previous part.
Part II - Initial part of the lesson with introduction to the subjects using specialized software and a projector. Final part with execution of a drawing in computer by the students where they apply the knowledge acquired in the previous part.
Part I – Basic Technical Drawing (TP):
Ongoing assessment :
- 2 Tests (T1 and T2).
- Exemption of final examination obtained with test average (TA) and final score (FS) both greater than 9.5.
Assessment by Final Examination:
- Examination test (E).
Part II – Computer Aided Design (Computer Lab.)
- CAD Assessment (CAD)
Final score (FS):
- With exemption of final examination: 60% MT + 40% CAD.
- Without exemption of final examination: 60% E + 40% CAD.
PART I - BASIC TECHNICAL DRAWING
- Drafting table.
- Technical pencils and pens.
- Tools for drawing: rulers; compasses; triangles; t-squares, etc
- Types of lines : visible; hidden; center; cutting plane; section,....
- Orthographic projections: ISO and american standards.
- Cuts and Senctions: areas on cuts and sections.
- Representation of threaded parts/inserts.
- Dimensioning: linear and angular dimensions.
- 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.