Identifying revisions on drawings revision letters. Fall 20 mech 211, mechanical engineering drawing welcome to. The person who will read drawings have to learn what they mean. Ioe engineering drawing solution i and ii ioe notes. Ce 100 civil engineering drawing sessional lab manual. Engineering drawing is a formal and precise way of communicating information about the shape, size, features and precision of physical objects. Drawing just like photography is one of the basic forms of visual communication. While the interpretation of a component in terms of sketching can be done in various methods, related to descriptive geometry, the three most necessary techniques of drawingprojection are. Objectives at the end of this section you should be able to. There are certain conventional lines recommended by american standard. Engineering drawingmechanical engineering interview questions,dimus. Engineering drawingtypes of lines,lettering and dimensioning. Usually, a number of drawings are necessary to completely specify even a.
For the love of physics walter lewin may 16, 2011 duration. Drawing is used to record objects and actions of everyday life in an easily recognizable manner. Engineering drawing, also called technical drawing and engineering graphics, is the. This will get you used to the look and feel of an engineering drawing. Known as hidden details are shown on the drawing as dotted lines. Design and drafting on computer are cheap and less time consuming. Engineering drawing text book by nd bhatt pdf latest. And the following list shows the significance of each of these lines. Topics ioe nepal drawing tutorial tu engineering collection opensource. Engineering drawing manual drawing cadd computer has a major impact on the methods used to design and create technical drawings. Engineering drawing, is the most important aspect of mechanical engineering, as it is the fundamental need to develop the design and assembly of a machine. Dimensioning a drawing also identifies the tolerance.
As described in introduction the engineering drawing tutorial is designed to improve and expand the mental mapping ability between isometric views and orthographic projections a normal engineering drawing procedure procedurally directs the mapping of the respective orthographic projection and isometric projection. Engineering drawingtypes of lines,lettering and dimensioning tricky engineering. The mechanical engineering branch, mechanical systems division, has. Different line types are used to indicate visible, hidden and symmetry lines. The text of the book covers the complete syllabus of the subject engineering drawing graphics of various technical universities all over the country and is also linked with a website, an. Engineering drawing ii syllabus we have compiled some figure construction tips on powerpoint. Pdf a textbook of engineering drawing a textbook of.
What is the importance of different types of lines in. The drawings of the engineer are an obvious case of making visible the practical expression of the profession, the. The steps for regular drawing figures cycloid, helix, ellipse, hexagon, hyperbola, involute, octagon, parabola and pentagon is available on engineering drawing figure construction tips and tricks multimedia post. Engineering drawing notes engineering tolerance screw. Integration of the engineering design and engineering graphics courses was in 4 respects. Therefore, an engineering drawing often contains more than just a graphic representation of its subject. Engineering drawing, most commonly referred to as engineering graphics, is the art of manipulation of designs of a variety of components, especially those related to engineering. An engineering drawing is a type of technical drawing that is used to convey information about an object. Upper case letters shall be used in sequence beginning with a and omitting letters i, o, q, s, x, and z.
Engineering drawing notes and legends engineers edge. A centerline is a light broken line used to indicate the centerline of a feature. Basic types of lines used in engineering drawings by kelly curran glenn sokolowski. By the end of this chapter, you will be able to create a technically correct orthographic. Textbook of engineering drawing, second edition xfiles. Cook basic engineering drawing pitman publishing ltd.
Engineering designs are the work of many people within an organisation. Its cross section helps in rotating the pencil, while drawing lines, to give uniform line thickness. Shoaf space task group engineering division of the proposed. Browse the worlds largest ebookstore and start reading today on the web, tablet, phone, or ereader. In the above title block, drn indicate who was responsible for drafting the drawing. A leader line is a thin solid line that is used to associate a note, symbol or dimension with a feature. Do not use the scales as a straight edge for drawing straight lines. Each line on a technical drawing has a definite meaning and is drawn in certain ways.
It is used as a boundary line of the drawing sheet and title block lines at the bo. Click on the link below to download the book click here download free. Engineering drawing is completely different from artistic drawing, which are used to express aesthetic, philosophical, and abstract ideas. Line types and thicknesses engineering drawing joshua. Engineering drawing different types of lines and their. These are used for drawing irregular curved lines, other than circles or arcs of circles. For example, the 5cm broken straight line ab below has been reduced by 5 using a reduction constant of 15.
Include visible, hidden, and center lines where appropriate. The following are the types of lines used in engineering graphics. Leader lines are typically used to call out radii and diameters. Engineering drawing notes and legends drawings are comprised of symbols and linesthat represent components or systems. Engineering drawing and related documentation practices types and applications of engineering drawings asme y14. Engineering drawings are usually created in accordance with standardized conventions for layout, nomenclature, interpretation, appearance, line. Appreciate the efforts to understand better of the drawing. Line types identification purpose in this section you will be able to recognise and interpret different line types, and the need for variation in thickness used on engineering drawings. Exercise complete three orthographic views of the object shown on the next slide. Usually the word scale is used for an instrument used for drawing straight lines. Mech2400 5400 engineering drawings lecture introduction. Engineering drawing solution first for first year first part subject. In this highly interactive object, learners associate basic line types and terms with engineering drawing geometry.
You can use this form to make your own production drawings for class. The gsfc engineering drawing standards manual is the official source for the requirements and interpretations to be used in the development and presentation of engineering drawings and related documentation for the gsfc. Drawing to scale means copying an object proportionally. A common use is to specify the geometry necessary for the construction of a component and is called a detail drawing. P3 interpret the main features of a given engineering drawing which complies with drawing standards ie4 p4 produce detail drawings of three given singlepiece components ct1 p5 produce an assembly drawing of a product containing three parts ct1. Engineering drawing and sketching introduction one of the best ways to communicate ones ideas is through some form of picture or drawing. The purpose of this guide is to give you the basics of engineering sketching and drawing. Technical drawing lines are used for different purposes to provide specific information for designers, manufacturers, etc.
Engineering symbology, prints and drawings a pdh online. Show full abstract graphics and engineering design laboratory i. Fundamentals handbook engineering symbology, prints, and. The initials or names indicate who was responsible for the various duties. If you find any issue while downloading this file, kindly report about it to us by leaving your comment below in the comments section and we are always there to.
753 242 790 1244 389 1377 1051 1066 430 641 170 688 289 588 269 3 180 119 1634 1311 1366 957 924 1317 1001 27 1366 272 243 1447 899 1355 917 86 566 1347 1447 1354 386 17 523 1440 1081 770 1050