IntroductionThere are many different ways of communicating ideas, information, instruction, etc. They can be transmitted by signs or gestures, by words of mouth, in writing, or graphically.Engineering drawing is a graphical language used by those concerned with the constructive arts: in the manufacturing of machinery, structure, ships, aircraft, and so on.

Drawing Office Personnel

Job Descriptions

Chief Designer

Whatever device is to be designed then it will be the responsibility of the Chief Designer to ensure:

• Function• Life and reliability• Accuracy• Materials• Methods of manufacture• Quantity

Drawing Office PersonnelThe drafting office is the starting point for all engineering work. Below is the job description of drawing office personnel;

Draftsman

The work include, changing a design sketch into a clear accurate working drawing, from which blueprints are made for the craftsman to work from when making the components.

CheckerThe completed working drawing is passed on to the checker who scrutinizes the drawing for completeness and accuracy.

Tracer

The completed working drawing may have to be produced in large quantities for various stages of manufacture. The copies need to be clear and robust. The finalized drawing is traced onto a suitable material from which prints are made for distribution.

Drawing Office PersonnelContinuations....

Drafting/Drawing Equipments

Set Square: 45°-45°-90°Set Square: 30°-60°-90°

Pencils

Scale Rule

ErasersTape (masking tape)

Protractor

T-Rule

Wooden Drawing Board

French curve

The following are essential, and should be purchased by all students of graphical communication before commencement of study and drawing practices:

Drawing Presentations

Drawing PresentationsContinuations....

Types of Drawing Papers

In Engineering Drawing, it is a compulsory for students to know the drawing paper sizes:

Application of the types of Lines