There are certain conventional lines recommended by american standard. These are used for drawing irregular curved lines, other than circles or arcs of circles. Drawing just like photography is one of the basic forms of visual communication. Textbook of engineering drawing, second edition xfiles. Download course materials design and manufacturing i. Shoaf space task group engineering division of the proposed. The person who will read drawings have to learn what they mean. Integration of the engineering design and engineering graphics courses was in 4 respects. Ioe engineering drawing solution i and ii ioe notes.
When the single letters have been exhausted, the revisions. Engineering drawings are usually created in accordance with standardized conventions for layout, nomenclature, interpretation, appearance, line. Pdf a textbook of engineering drawing a textbook of. Basic types of lines used in engineering drawings by kelly curran glenn sokolowski. Technical drawing lines are used for different purposes to provide specific information for designers, manufacturers, etc. Engineering drawing is completely different from artistic drawing, which are used to express aesthetic, philosophical, and abstract ideas. Engineering drawing, also called technical drawing and engineering graphics, is the. In the above title block, drn indicate who was responsible for drafting the drawing.
Fall 20 mech 211, mechanical engineering drawing welcome to. Mech2400 5400 engineering drawings lecture introduction. 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. Different line types are used to indicate visible, hidden and symmetry lines. Usually, a number of drawings are necessary to completely specify even a. Leader lines are typically used to call out radii and diameters.
Drawing is used to record objects and actions of everyday life in an easily recognizable manner. And the following list shows the significance of each of these lines. Engineering drawing and related documentation practices types and applications of engineering drawings asme y14. This will get you used to the look and feel of an engineering drawing. Engineering drawing manual drawing cadd computer has a major impact on the methods used to design and create technical drawings. Browse the worlds largest ebookstore and start reading today on the web, tablet, phone, or ereader. Known as hidden details are shown on the drawing as dotted lines. Engineering drawing different types of lines and their.
Identifying revisions on drawings revision letters. 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. 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 notes engineering tolerance screw.
For the love of physics walter lewin may 16, 2011 duration. An engineering drawing is a type of technical drawing that is used to convey information about an object. Engineering drawing notes and legends drawings are comprised of symbols and linesthat represent components or systems. Engineering drawing text book by nd bhatt pdf latest. The following are the types of lines used in engineering graphics. Do not use the scales as a straight edge for drawing straight lines. Ce 100 civil engineering drawing sessional lab manual. Objectives at the end of this section you should be able to. By the end of this chapter, you will be able to create a technically correct orthographic. Find materials for this course in the pages linked along the left. Drawing to scale means copying an object proportionally. Upper case letters shall be used in sequence beginning with a and omitting letters i, o, q, s, x, and z.
What is the importance of different types of lines in. Usually the word scale is used for an instrument used for drawing straight lines. The purpose of this guide is to give you the basics of engineering sketching and drawing. A common use is to specify the geometry necessary for the construction of a component and is called a detail drawing. 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 drawing notes and legends engineers edge. 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. 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. For example, the 5cm broken straight line ab below has been reduced by 5 using a reduction constant of 15. Its cross section helps in rotating the pencil, while drawing lines, to give uniform line thickness. The initials or names indicate who was responsible for the various duties. 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. 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. Appreciate the efforts to understand better of the drawing. Engineering drawing is a formal and precise way of communicating information about the shape, size, features and precision of physical objects.
It is used as a boundary line of the drawing sheet and title block lines at the bo. The drawings of the engineer are an obvious case of making visible the practical expression of the profession, the. An engineering drawing is a means of clearly and concisely communicating all of the information necessary to transform an idea or a concept in to reality. It primarily consists of sketching the actual component, for example, a machine, with its exact dimensions. Engineering designs are the work of many people within an organisation. Engineering drawing ii syllabus we have compiled some figure construction tips on powerpoint. The mechanical engineering branch, mechanical systems division, has. Topics ioe nepal drawing tutorial tu engineering collection opensource. Engineering drawings the blank engineering drawing form this blank template can be printed off the 2. Engineering drawingmechanical engineering interview questions,dimus. Fundamentals handbook engineering symbology, prints, and.
You can use this form to make your own production drawings for class. In this highly interactive object, learners associate basic line types and terms with engineering drawing geometry. Therefore, an engineering drawing often contains more than just a graphic representation of its subject. Engineering drawing and sketching introduction one of the best ways to communicate ones ideas is through some form of picture or drawing. 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. Cook basic engineering drawing pitman publishing ltd. Line types and thicknesses engineering drawing joshua. Design and drafting on computer are cheap and less time consuming. A leader line is a thin solid line that is used to associate a note, symbol or dimension with a feature. Engineering drawingtypes of lines,lettering and dimensioning tricky engineering. Line types are also a language type to communicate between technical people. 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.
Engineering symbology, prints and drawings a pdh online. Engineering drawingtypes of lines,lettering and dimensioning. Each line on a technical drawing has a definite meaning and is drawn in certain ways. A centerline is a light broken line used to indicate the centerline of a feature. Engineering drawing study materials engineering graphics. Click on the link below to download the book click here download free.
Although a majority of the symbols and lines are selfexplanatory or standard as described in later modules, a few unique symbols andconventions must be. Dimensioning a drawing also identifies the tolerance. For example, 1 100 is a typical scale used for civil engineering drawings. Exercise complete three orthographic views of the object shown on the next slide. Engineering drawing solution first for first year first part subject.
908 1580 691 927 1169 1363 207 134 883 344 1537 37 1443 706 1368 1467 882 645 481 1313 1462 1409 1442 1105 665 558 370 619 149 72 1287 1310