TECHNICAL DRAFTING 1 PART 1

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• This module was designed and developed to provide knowledge and skills in assessing architectural jobs requirements based on SOP in technical Drafting
• The module is composed of one lesson which is all about Drafting Architectural Layout and Details (AL) - Part 1 - Prepare Tools, Materials, and Equipment in Technical Drawing
• After going through this module, you are expected to:

  • Identify the different tools and materials being used in Technical Drafting
  • Determine its different uses and applications in illustrating your drawings in Technical Drafting
  • Appreciate the importance of various drafting tools and materials in technical drafting as well as in industry today
• Drawing paper

  Various types of drawing papers are available for use, but hard and soft surface drawing papers are highly recommended to be the best. This type does not groove easily when pressure is applied to the pencil. Oslo paper is commonly used but bond paper is also recommended.
• Masking tape or Drawing tape


  This is used for fastening the drawing paper on the drawing table or drawing board because it does not damage the board and it will not damage the paper if it is removed by pulling it off.
• Pencil sharpener


  Pencils should be sharpened whenever they show sign of dullness. Various types and designs are available in the store for use.
• Eraser


  This is used to clean the dirt off the drawing. A soft eraser is advantageous in removing smudges and pencil marks, whereas a harder eraser is useful for making changes and correcting errors in the drawing.
• Drawing pencil


  This is one of the most important tools in drawing. It comes in various grades. The grade of pencil to be used depends on the quality of paper to be used. You must take into consideration also the type of line work required. Hard pencils – are used where extreme accuracy is required especially working on graphs, diagrams, and charts. Medium pencils – are used for general purpose work in drawing. Soft pencils – are too soft to be used in mechanical drafting. They are very useful for artwork of various kinds.
• Triangular Scales


  This is a tool generally used when reproducing a drawing in an enlarged or reduced form to some regular proportion. The architect's scale is the most used for general drawing. Its main function is to reproduce the measurements of an object in full size, reduced size, and enlarged size.
• Erasing Shield


  This tool is made up of metal with irregular holes. It is a useful tool to protect the rest of the drawing when clearing up smudges, unnecessary pencil lines and other erasures.
• 1. 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. There are three (3) types of T-square, namely: Fixed Head. The head is fastened to the blade. It is used for ordinary work. Movable Head or Adjustable Head. It has one fixed and one adjustable head and used only for occasional drawing. Detachable Head or Removable Head. It is designed for comfort when carrying the T-square.
• Triangle


  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. It is usually made of plastic and comes in different sizes. If in use, the base of the triangle must rest on the blade of the T-square. Drawing a line always starts from the point near the base going upward. Commonly used triangles are: 30 degrees X 60 degrees, 45 degrees X 45 degrees
• Compass


  This drawing instrument is used when drawing arcs and circles. It is used in a similar way to a divider. It is composed of one with the pen leg and the needle point leg being held together with a handle. This drawing instrument can be used for both penciling and inking.
• Divider


  This is a drawing instrument used when transferring measurements, dividing lines and arcs into the desired number of equal parts. It can easily transfer accurate measurements by adjusting the divider points. Constant correct practice is necessary before doing actual work for quick and easy control when used.
• 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. High quality protractors are usually made of plastic.
• Study and analyze the table below. First column is a list of drafting tools, materials, and equipment that could be found at home, put a check mark to the availability and condition of the different tools and materials that are available. By this checklist you must be able to determine if you are ready to proceed to the next topic.
• List at least 6 different tools and materials being used in Technical Drafting. Then, determine its different uses and applications in illustrating your drawings in Technical Drafting.
• There are twelve (12) different drafting materials and tools and drawing instruments that can be found in the puzzle. Identify and encircle at least (10) ten words.
• Read and analyze the questions carefully. Write the letter of the correct answer on the space provided before each number.
• Using your internet, search for other tools and materials of a Draftsman which is not listed on today's lesson. Download its picture or draw it manually on the space provided. Identify at-least 3 tools or materials to complete the task following the scoring rubric below.
• On the space provided, draw all the tools and materials being identified on today's lesson, following the scoring rubric below. Remember, maximum of 2 bond papers only to be used to draw all the tools and materials in Technical Drafting.