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  1. TECHNICAL DRAFTING Technology And Livelihood Education THIRD QUARTER
  2. Drafting, otherwise known as technical drawing, is the creation of accurate representations of objects, buildings, or houses for technical, architectural, or engineering purposes.
  3. In drafting, objects are drawn to scale, and usually comprise a top view, a main view and a side view of the object or building. They are usually very detailed and are often used as blueprints for the construction or assembly of the object.
  4. Words to know: •Dimension – a measurable extent of some kind, such as length, depth or height. •Smudge – a blurred or smeared mark on the surface of something. •Detachable – able to be removed or separated from something.
  5. Drawing tools are used for drawing and designing purposes. Their quality is very essential if you want to have a good result.
  6. Measuring Tools 1. Triangle – It is used in making vertical lines. It is a three-sided ruler, which typically has two equal sides meeting at a 90- degree angle and to a third side at 45, 30, including 60-degree angles. 2. Triangular Scale – This is a tool generally used when reproducing a drawing in an enlarged or reduced form to some regular proportion.
  7. Measuring Tools 3. Compass – It is used in making circles and arcs. 4. Divider – It is used in dividing and transferring measurement.
  8. Measuring Tools 5. Protractor – It is a semi- circular instrument divided into 180 equal parts, each of which is called a degree. It is used to determine gradations of the degrees when measuring arcs, angles, and circles. 6. Ruler – It is used to measure short distances.
  9. Measuring Tools 7. T-Square – It is a drawing instrument used when making horizontal lines. It is also used for guiding triangles when drawing vertical lines. It is made of wood, plastic, or the combination of both. a. Fixed Head – the head is fastened to the blade. It is used for ordinary work. b. Movable Head or Adjustable Head - it has one fixed and one adjustable head and used only for occasional drawing. c. Detachable Head or Removable Head - it is designed for comfort when carrying the T-Square.
  10. Words to know: • Lend – grant to (someone) the use of (something) on the understanding that it shall be returned. • Mishap – an unlucky accident.. • Strain – a force tending to pull or stretch something to an extreme or damaging degree.
  11. Safety Procedures in Using Hand Tools and Equipment 1. Workspace safety must be observed properly. 2. Correct posture must be practiced when using hand tools. 3. Use the proper personal protective equipment necessary to protect you from potential hazards.
  12. Importance of Proper Storage of Tools and Equipment It is an important factor for safety and health as well as good business. Improves appearance of general- shop and construction areas. Reduces overall tool cost through maintenance. This also ensures that tools are in good repair at hand. Teaches workers principles of tool accountability.
  13. 1. Never lend or borrow drafting tools and materials if may. 2. Avoid dropping your tools and equipment. 3. Never use measuring tools in cutting paper. 4. Wipe off the surface and edges of triangles, rulers, and T-squares. 5. Have a separate container for marking tools. 6. Sharpen and store your pencils after use. 7. Keep your drawing sheets in a plastic to protect. 8. Find or create an organizer where you can hang your measuring tools. Proper Care and Maintenance
  14. Procedures in Cleaning, Tightening and Simple Repair of Hand Tools, Equipment, and Paraphernalia 1. The work area must always be kept neat and tidy. 2. All tools and equipment must be placed in a clean and dry place. 3. Clean tools and equipment work more efficiently. This lessens the effort needed to operate them and reduces the possibility of mishaps. 4. Before cleaning any tool, be sure to wear the proper personal protective equipment. Gloves, masks and goggles are usually worn when cleaning tools since most cleaning agents and solutions are harmful to the human body.
  15. Procedures in Cleaning, Tightening and Simple Repair of Hand Tools, Equipment, and Paraphernalia 5. Only use cleaning agents as prescribed by the tool or equipment’s manufacturer. Follow the cleaning procedures as well to make sure that no damage will be inflicted on the tools. 6. Cleaning the tools after use is highly recommended. 7. Tools with moving parts often suffers losing of its parts. This is normal since these segments keep on moving. A tool with loose parts will not function properly and may cause injuries.
  16. Procedures in Cleaning, Tightening and Simple Repair of Hand Tools, Equipment, and Paraphernalia 8. Gripping tools such as pliers is an example that needs tightening. A plier's rivet must be well tightened to be able to grip properly. 9. Lubricants must also be applied after tightening to reduce friction. 10. Driving tools’ handles must also be tightened to reduce hand strain when turning. A loosely connected handle will make it almost impossible to use it.