AET 511 _ Unit 1 _ W1

AET511 Fundamentals of Mechanical Workshop

Ammar Ahmed

AET511 Brief:

AET511 Fundamentals of Mechanical Workshop

This unit aims to provide learners with the knowledge and skills to use a drawing instrument to produce 2D and 3D drawings. In this unit, the learners will use freehand sketching techniques to produce the 3D drawing, and they will be able to read and interpret simple engineering drawings and diagrams. The unit also explains how to use CAD software to produce a physical component on 3D printers and laser engraving machines.

Course Outlines:

AET511 Fundamentals of Mechanical Workshop

1. Produce 2D orthographic views

2. Freehand sketching technique and Construction of three- dimensional views

3. Interpretation of simple engineering drawings and diagrams

4. Use CAD software to design a component to be produced on the 3D printers

Resources and class material:

AET511 Fundamentals of Mechanical Workshop

1. Resources: [OneDrive, Emails, MS Teams]

   1. Units from CDU

   2. Instructional videos

   3. Online resources

2. Platforms:

   1. Classkick (Assignments)

   2. Quizizz (Class notes and activities)

Assessment Scheme:

AET511 Fundamentals of Mechanical Workshop

Class Rules:

AET511 Fundamentals of Mechanical Workshop

Learning Outcomes:

AET511 Fundamentals of Mechanical Workshop

1. Explore instruments used in engineering drawings

2. Explore paper sizes used in engineering design

3. State the importance of implementing working environment procedures in drawing processes.

4. Illustrate the use of scale in engineering design

5. Produce a drawing paper layout for both A4 and A3 paper size and fill in the title block

6. Identify the four common line representations in engineering drawing

7. Name the six principal views in orthographic projection

Introduction:

AET511 Fundamentals of Mechanical Workshop

Technical drawing is the study of the procedures, tools, supplies, skills and techniques used to record and communicate the shape and size of a product.

Drawing Instruments:

AET511 Fundamentals of Mechanical Workshop

• To prepare a drawing, one can use manual drafting instruments, or computer-aided drafting (CAD).

• If the drawing is made without either manual instruments or CAD, it is called a freehand sketch.
  

Multiple Choice

The figure represents ........... It has a smooth surface upon which the drawing paper is placed.

• Drawing board

• T square

• Set square

• Compass

Multiple Choice

The ................... is composed of a long blade and placed on the drawing board and provides a constant horizontal edge.

• Drawing board

• T square

• Set square

• Compass

Multiple Choice

The two standard ........................ that are commonly used are 30/60 and 45/45 degrees triangles. They are used to produce lines at 30, 45, and 60 degrees

• Drawing boards

• T square

• Set square

• Compass

Multiple Choice

.................. is used to draw circles with specific diameters.

• Drawing boards

• T square

• Set square

• Compass

Multiple Choice

.................. is used to measure angles other than those obtained by the set squares and found in half circle or full circle.

• Pencil

• Protractor

• Ruler

• Eraser

Drawing Instruments:

AET511 Fundamentals of Mechanical Workshop

• Drawing boards

• T square

• Set square

• Compass divider

• Protractor

  
  

• Ruler: to draw straight lines

• Pencil: to produce drawings and lines

• Eraser: to erase lines

• Circle template: to draw circles with different sizes

• French curve: to draw smooth curves
  

Paper sizes used:

AET511 Fundamentals of Mechanical Workshop

Drawing paper is available in ‘A’ series, ‘B’ series, and rolls of the International Organization for standardization (ISO), but series ‘A’ is preferred.

The use of scale:

AET511 Fundamentals of Mechanical Workshop

• In order to produce a drawing showing components in detail or as plans it is often necessary to use a scale.

• Different scenarios:

  • Enlargements scales: 2:1 5:1 10:1

  • Full scale (same size): 1:1

  • Reduction scales: 1:2 1:10 1:100
    

A3 drawing frame:

A4 drawing frame:

Line representations:

Six principal views in orthographic projection:

AET511 Fundamentals of Mechanical Workshop

Working Environment Procedures In Drawing Processes:

Draw

Draw the 3 views of drawing 1

Draw

Draw the 3 views of drawing 2

Draw

Draw the 3 views of drawing 3

Draw

Draw the 3 views of drawing 4

Draw

Draw the 3 views of drawing 5

Draw

Draw the 3 views of drawing 6

Draw

Draw the 3 views of drawing 7

Draw

Draw the 3 views of drawing 8

Classkick _ Milestone 1:

AET511 Fundamentals of Mechanical Workshop

​KM8 UIZ