I guess like any type of technical drawing you need to have an understanding of what device you’re trying to illustrate, its functions, and the space creators need to understand while assembling. A harder pencil should be used, such as a 2H pencil. Download ED Notes – 1 Engineering-Drawing-Part-2. Introduction. An engineering drawing is a type of drawing that is technical in nature, used to fully and clearly define requirements for engineered items, and is usually created in accordance with standardized conventions for layout, nomenclature, interpretation, appearance (such as typefaces and line styles), size, etc. The use of a right type of line results in a correct drawing. F; Chain Thin with Thick Ends: Cutting Plane, To draw the trace at section planes, G; Continuous Thin Zigzag Line: It is used when free hand lines are drawn by tools, H; Free Hand Line: Limits of partial and interrupted views and sections, I; and J; Parts situated in front of the cutting planes, The continuous thin line is the most frequently used line type on Engineering Drawings. Section View are highly useful in minimizing the number of projected views. Basic Knowledge for Drafting Graphics language Word language Lec. | Find, read and cite all the research you need on ResearchGate A dimension line which is a type B line (thin, continuous and straight). Apart from the Engineering Drawing, Production Drawing and Machine Drawing was also need to be learned by the Engineering student. and Ans. Copyright ©2020 Coban Engineering.All Rights Reserved. })(jQuery); Junying Metal Manufacturing has developed high-level manufacturing technique in This video will help you to understand the difference between different types of lines used in technical drawing. H: Long Thin Dashed and Double Short Dashed Lines. Each style can be divided into different types. C: Auxiliary View; Auxiliary View are usually used to show inclined and oblique surface true size. Blue = center line of piece or opening 4. D; Dashed Thick Lines with Dots: To state the special places/surfaces which will processed additionally like to coat, to harden etc. Drafting students or those reading the drawings have to learn what they mean, just as one learns a new language. An engineering drawing is a type of technical drawing contains all the information of a product to be machined or fabricated, the purpose is to specify the geometry necessary for the construction of the product. The projection lines for the hole-centre spacing dimension of 32mm are centre lines. PDF | This book includes practice problems for Engineering Drawing course. B: Section View; Section View allows Designer to show internal feature of the objects. Download ED Notes – 3 Engineering-Drawing-Part-4. The ability to read and understand information contained on drawings is essential to perform most engineering-related jobs. A variety of line styles graphically represent physical objects, including visible, hidden, center, cutting plane, section, and phantom. (function ($) { 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. Technical drawings provide clear and accurate information how an object is to be manufactured. The BS ISO standards require a 20mm border to the left hand edge (for filing) and a 10mm border round the other three sides of the drawing sheet. It is a basic requirement and … Also, it may be added here, that Lettering is appropriate and correct… Lines that are not parallel to these axes will not be of their true length. ... T square is used to draw horizontal and vertical lines on drawing sheet. The Bureau of Indian Standards has prescribed the types of lines in its code IS-10714-1983 to be used for making a general engineering drawing. 16. Putting the Line types, Line weights and Line type scales together, we get the following Line type Definitions to use in our drawings. Elements of Engineering Drawing Engineering drawing are made up of graphics language and word language . F: Chain Thin Line Long-Dotted (Dashed Thin Lines with Dots). These lines are solid and has no break in them. In an isometric drawing, the object's vertical lines are drawn vertically, and the horizontal lines in the width and … Bhuiyan Shameem Mahmood Graphics language Describe a shape (mainly). Engineering Drawing and Sketching. Continuous Thin Line . 1 Fundamental of Engineering, Instruments and practice of drawing lines 1.1.01 - 1.3.09 18 Hrs 2 Geometrical figures, lettering, numbering and method of dimensioning 1.4.10 - 1.6.18 18 Hrs 3 Free hand drawing 1.7.19 - 1.7.23 6 Hrs 4 Drawing sheet sizes, title block and item list 1.8.24 6 Hrs The following are the critical information of an engineering drawing of mechanical parts or CNC products. ME 111: Engineering Drawing Lecture 5 12-08-2011 Orthographic projection and 1 Projection of Points Indian Institute of Technology Guwahati Guwahati – 781039. The engineering drawing understandings by the hidden lines are plays a vital role. Extensive Engineering Symbol Libraries SmartDraw includes a large collection of mechanical engineering and architectural shapes and stencils for every type of engineering drawing. The person who will read drawings have to learn what they mean. Figure 2 - An Isometric Drawing. Each style can be divided into different types. Home | Mechanical Engineering| Robot | Aerospace | Structural Engineering |Videos | Comment |. Engineering drawings … Technical drawing Lines are used for different purposes to provide specific information for designers, manufacturers, etc. Line types are also a language type to communicate between technical people. Solutions – Applications of Lines. Standardized languages and symbols are used to describe the dimensions, parameters, and other features of the objects, which helps people to understand the drawing and manufacture the part correctly. C; Dashed Thin Lines: Invisible/Hidden Lines represents an invisible edges on the on an objects. Download ED Notes – 6 The person who will read drawings have to learn what they mean. The Line … $(".your-captcha .wpcf7-not-valid-tip").html("Incorrect"); Continuous Thin line with intermittent Zig Zag: This lines are to showing break in a long continuous series of lines on structural drawing and also indicating the break on an adjacent member to which a component is attached. I have amalgamated the definitions from the engineering drawing supplement and the construction drawing supplement together. It is not hand written. More Resources /articles Engineering Drawing- Articles , Notes , Interview Q & A Machine Design Notes , article , Interview Que. This line is located in front of cutting planes, outlines of adjacent parts, censorial Lines, and to state center of gravity. It gives information regarding size, and instructions, in the form of notes and dimension. drawings, In front of section planes. Here is an example of an engineering drawing (an isometric view of the same object is shown above). The height dimensions are aligned between the front and the profile views, using horizontal projection lines. Each line is used for a definite purpose and it should not be used for anything else. Engineering-Drawing-Part-1. B; Continuous Thin line: Measure lines, Backside section lines, Intuitive Interface You already have a degree in engineering, you shouldn't need a degree to operate software. A quiz completes the activity. looking at the drawing. Line types used in technical drawing are used for different purposes to provide specific information to the people looking at the drawing. For general engineering drawings, the types of lines recommended by the Bureau of Indian Standards shown in table 2 must be used. ... projection lines. The different line types are colored for clarity. Download ED Notes – 5 Engineering-Drawing-Part-6. In addition, besides pictographic representations, additional textual explanations can be used to convey the necessary information. On a drawing, whole of the written information is always in the form of lettering. The size of the drawing border (or Engineering Drawing Frame) on your technical drawings is covered in BS EN ISO 5457. This line may be made thin if the drawing is congested and allot of lines are so close to each other that the clarity of the drawing is negatively influenced. Basic Types of Lines Used in Engineering Drawings By Kelly Curran Glenn Sokolowski. Magenta = phantom line or cutting plane line Sectional views are indicated by the direction of arrows, as in the example above. Download ED Notes – 2 Engineering-Drawing-Part-3. A single drawing is composed of many basic elements, and different types of lines play distinct roles. Uncategorized / By Engineering Drawing Basics. Conventions – commonly accepted practices, rules, or methods. Engineering drawing abbreviations and symbols are used to communicate and detail the characteristics of an engineering drawing.This list includes abbreviations common to the vocabulary of people who work with engineering drawings in the manufacture and inspection of parts and assemblies. by Ernesto E. Blanco, David Gordon Wilson, Sherondalyn Johnson, and LaTaunynia Flemings. This line is used to represent the location of a cutting plane. In this highly interactive object, learners associate basic line types and terms with engineering drawing geometry. Geometry – the shape of the object, represented as views from various angles, Dimensions – the size of the part, expressed in accepted units, Tolerances – variations of each dimension allowed, Material – represents what the component is made from. A; Continuous Thick Line: Surroundings and sides of the matters ( Outlines of the Edges), End of the Screws. While it doesn’t do all your job for you (ironically if it did, it means you’re out of a job), having a software like this can make things a lot easier for you by a large margin. Types of Lines. These lines touch the outline of the part. Different line types used on Engineering Drawings. Let’s see what types of lines used in engineering drawings. Red = hidden line 3. They are type G lines (thin, discontinuous, chain) which pass through the drawing just past where the holes are located. This line is used to show hidden edges of the main object. MECHANICAL ENGINEERING 22 21. With an engineering drawing software at your disposal to make things so much simpler and easier for you, it would simply be a waste of time and effort to do everything manually. Word language Describe size, location and specification of the object. Implied axis lines, to state the code of the planes, In most cases, a simple component is specified with many drawings, which are linked together with a primary drawing or assembly drawing. It shows and describes clearly and accurately the information required to build or manufacture a product. outlines of adjacent parts, Engineering Drawing Plays a crucial role in the life of Every Mechanical Engineering student because he has to bear that subject throughout his BTech. Copyright ©Junying Metal Manufacturing Co., Limited, What is Engineering Drawing & Different Types of Lines in Engineering Drawing | CNCLATHING. Any engineering drawing should show everything: a complete understanding of the object should be possible from the drawing. In engineering drawing, engineering related objects like buildings, walls, electrical fittings, pipes, machines etc. NPTEL provides E-learning through online Web and Video courses various streams. A single drawing is composed of many basic elements, and different types of lines play distinct roles. production fields of machining. Technical drawing is a form of design communication based on line symbols recognized and understood worldwide. This line is used to represent the center line for circles and arcs. Because of … ANSI and ISO Geometric Tolerancing Symbols, ISO International System For Limits And Fits, Fundamental Deviations For Hole and Shaft Basis, Calculation of Upper and Lower Deviation For Shaft, Calculation of Upper and Lower Deviation For Holes, Terms and Definitions of the Cutting Tools, Selection of Carbide to machine the work-part, Identification System For Indexable Inserts, Machinability and the specific cutting force, Machinability of the Certain Material Evaluations. technical people. The hidden lines are also called as dotted lines. Technical Drawing Line Types. The basis of any drawing is a line. Technical drawing Lines are used for different purposes to provide specific information for designers, manufacturers, etc. Black = object line and hatching 2. looking at the drawing. Drawing Handout Index. In engineering drawing, the details of various objects are drawn by different types of lines. are represented with specifications like size, shape, materials etc. ... All the positioning is done by one hand while the other is used for drawing the lines. This line is basically used for dimension, extension, projection, leader line, etc. Download ED Notes – 4 Engineering-Drawing-Part-5. at diagonal lines which are used to state plane surface, Intersection, Leader, Hatching. Keep reading for understanding the basic components of engineering drawing. E; Dashed Thin Lines with Dots: Axis lines of symmetrical These lines are mostly used for typical part drawings and hidden lines are representing to showing the surfaces whenever the draft man could not see volute of the part drawing. What types of lines used in engineering drawings and how they used? 1. Let’s see what types of lines used in engineering drawings. Line types are also a language type to communicate between INTRODUCTION Lettering is an important part of engineering drawing. For example, holes require center lines to identify the center and show that it is round. This line is used to show short break or irregular boundaries. Dashed lines are used to represent hidden features of an engineering drawing.. Hidden lines – location of drilled hole’s diameter, in a view where the hole cannot be directly seen. Engineering drawing is the language of engineers and technicians. Censorial Lines, to state center of gravity. If the isometric drawing can show all details and all dimensions on one drawing, it is ideal. This line is used to display the outline and edges of the main drawing, done with a pencil softer than HB. inclined and oblique surface do not show true size in the standard views. Continuous thin freehand lines are used in engineering drawing for showing sectional boundary lines on part and for Short break lines. Lec. block of an engineering drawing. EO 1.4 STATE the purpose of the notes and legend section of an engineering drawing. Certain features on a Engineering Drawing requires specific ways of indication. A variety of line styles graphically represent physical objects, including visible, hidden, center, cutting plane, section, and phantom.