Here you can download the free Engineering Graphics Pdf Notes – EG Pdf Notes materials with multiple file links to download. Without a standard method for describing the details of the part, 1.3 STATE the three types of information provided in the revision block of an engineering drawing. EO 1.4 STATE the purpose of the notes and legend section of an engineering drawing. EO 1.2 STATE how the grid system on an engineering drawing is used to locate a piece of equipment. ♦ Mention types of drawing ♦ Explain the difference between different types of drawings ♦ Mention some of the applications of technical drawings 1.1 Drawing A drawing is a graphic representation of an object, or a part of it, and is the result of creative thought by an engineer or technician. These projections rely on visual perspective and aspect analysis to project a complex object for viewing capability on a simpler plane. An elevation drawing is an orthographic projection drawing that shows one side of the house. A 3D projection (or graphical projection) is a design technique used to display a three-dimensional (3D) object on a two-dimensional (2D) surface. Here you can download materials of Engineering drawing Pdf Notes - ED Pdf Notes with latest and old materials with different links. According to the BIS SP:46-1988, Engineering drawing practice for schools and colleges; first angle projection method only, is required to be followed. Specifying optical components is a vital method for the optical designer to relay to the optician exactly what is expected to be produced. This book deals with the fundamentals of Engineering Drawing to begin with and the authors introduce Machine Drawing systematically thereafter. External Elevation of an engineering drawing. 9. A combination of qualitative and quantitative data collection and analysis methods were used, as those were found to be a more effective way to analyse complex systems . qualitative and quantitative analyses; and the three research outcomes, i.e. Development of surfaces. Complex technical drawings were made in renaissance times, such as the drawings of Leonardo da Vinci.Modern engineering drawing, with its precise conventions of orthographic projection and scale, arose in France at a time when the Industrial Revolution was in its infancy. In this article, you will learn about the types of nuts and bolts. Projection Systems (IAW ASME Y14.3M) 10. o Line Thickness This, in my opinion, is an excellent approach. Orthographic projection of points, lines, planes and solids. L. 1.2 STATE how the grid system on an engineering drawing is used to locate a piece of equipment. There are two major types of drawings: artistic drawings and technical drawings. Drawing (just like photography) is one of the basic forms of visual communication. MEHRAN UNIVERSITY OF ENGINEERING & TECHNOLOGY, JAMSHORO B.E MECHANICAL ENGINEERING BATCH-F16, 1ST YEAR,1ST SEMESTER Types of development 2- Radial line development: In this, lines radiating from a central point to construct … The scheme for the symbolic representation of welds on engineering drawings used in this manual is consistent with the “third angle” method of projection. Dimensioning and Tolerancing (IAW ASME Y14.5M) 11. Explanation: Isometric lines – Designating a method of projection (isometric projection) in which a three-dimensional object is represented by a drawing (isometric drawing) having the horizontal edges of the object drawn usually at a 30° angle and all verticals projected perpendicularly from a horizontal base, all lines being drawn to scale. Screw Thread Representation (IAW ANSI Y14.6 and Y14.6aM) 13. 1.5 LIST the five drawing categories used on engineering drawings. The cylindrical portion of the bolt is known as the shank. Fig. For general engineering drawings, the types of lines recommended by the Bureau of Indian Standards shown in table 2 must be used. EO 1.3 STATE the three types of information provided in the revision block of an engineering drawing. The purpose of an elevation drawing is to show the finished appearance of a given side of the house and furnish vertical height dimensions. 1.4 STATE the purpose of the notes and legend section of an engineering drawing. Principal and auxiliary views. Surface Texture (IAW ASME B46.1 and ASME Y14.36M) 12. communication (technical/engineering drawing) may prove irreplaceably useful. Sectional views. 1 details the main parts of the research method, i.e. The thickness of the lines must be chosen according to the type and size of the drawing from any of the six groups given in Table 1. Intersection of lines, planes and solids. History. Drawing is used to record objects and actions of everyday life in an easily recognizable manner. A bolt contains two parts a shank and head. Figure 2 - An Isometric Drawing. Technical drawing has existed since ancient times. Engineering Drawing Practices ” Types and Application of Engineering Drawings. Majorly it is divided into 3 types, 1. When one person sketches a rough map in giving Engineering Connection Orthographic projection is a technique used in spatial visualization, which is an essential skill for engineers in taking an idea that initially only exists in the mind, to something that can be communicated clearly to other engineers and eventually turned into a product. The joint is the basis of reference for welding symbols. The Mercator projection is a cylindrical map projection presented by the Flemish geographer and cartographer Gerardus Mercator in 1569. Specifications regarding general notes, material, heat treatment, finish, general tolerances and number required are located on or near the title block. Autodesk Community is a global network of connected customers, partners and employees who learn from each other and drive innovation in their respective industries. If the isometric drawing can show all details and all dimensions on one drawing, it is ideal. Introduction Tutorial on ISO 10110 Optical Drawing Standard OPTI 521 – Intro to Opto-Mechanical Engineering Jason Lane 13 December 2009 1. ... What are the two fundamental methods of shape representation used in engineering drawing? Views in a given direction. Dimensioning, fits and tolerancing. Introduction. The content presented in the Fundamentals of Design Drafting text is written to assist students in learning and developing a core knowledge of design/drafting and skill-building procedures. This map projection is practical for nautical applications due to its ability to represent lines of constant course, known as rhumb lines, as straight segments that conserve the angles with the meridians. This concept of extending 2D geometry to 3D was mastered by Heron of Alexandria in the first century. Any engineering drawing should show everything: a complete understanding of the object should be possible from the drawing. In an axonometric drawing, the projection rays are drawn _____ to each other and _____ to the plane of projection. Which type of line has precedence over all other types of lines? 1.2 Types of Lines: Usually lines created are all of the same thickness and type, but lines on an engineering drawing signify more than just the geometry of the object, and it is important that appropriate line type is used in the right place, because each gives different meaning. The shank is threaded at the tail end for a sufficient length so as to effectively engage with a nut. 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