TD 1, 2 & 3

program is designed to prepare students for post secondary education in the area of Engineering, Architecture, and some Technical Vocational Courses Students will have the opportunity to develop manual drafting skill as well as basic Computer Aided Designs or AutoCAD

a precise and detailed drawing of an object It bridges the communication between designers the people who come up with ideas, and producers, the people who put the ideas into practice They are designed as a universal language to be understood by engineers, architects, contractors, and workers

a process of conveying information with complete details and specifications It is also called as graphic representation of proposed design for manufacturing and construction works

used for fastening the drawing paper on drawing table since it does not damage the surface of the paper.

reproduce dimension in full size or reduce or enlarge them on a drawing. Helps the drafter to keep proportions accurate.

made of out metal with irregular holes

used in making horizontal lines

three sided ruler

drawing arcs and circles

used to transfer measurements, dividing lines and arcs into the desired number of equal parts

semi circular instrument divided into 180 equal parts which is called degree

used to specify details of an object on a drawing The uniformity of lettering means keeping the height, inclination, spacing, and weight of lines should be the same A legible freehand lettering is an essential part of technical drawing

meaning of ISO

an international standard (beginning with ISO/IEC 646) for a Latin-script alphabet that consists of two sets (uppercase and lowercase) of 26 letters, codified in various national and international standards and used widely in international communication.

What should be the same (criteria) for ISO lettering?

They are used in old Greek Writings and Office letterheads. They can also be seen in school distinguish marks and logos, and structures or buildings.

They are used mostly in certificates or diplomas

used in many computer operating systems, and is a printing option in most print shops. Can also be used in technical lettering where it describes, or provides detailed specifications for, an object.

refers to the process of drawing lines, angles, and other geometric shapes and figures using only a compass and a straightedge.

a closed plane figure bounded by straight lines.

parts of a compass