![]() Type Y (A4 only) Title block Drawing Sheet : Orientation & Margin d d c c c Sheet size c (min) d (min) A4 10 25 A3 10 25 A2 10 25 A1 20 25 A0 20 25ĭrawing Standard Drawing Scale Drawing standard Contentsĭrawing Scales : Definition Drawing Actual Length, size 1 2 : Scale is a ratio between the linear dimension of a drawn representation of an object and the actual object. Standard sheet size ( JIS ) A4 210 x 297 A3 297 x 420 A2 420 x 594 A1 594 x 841 A0 841 x 1189 A4 A3 A2 A1 A0 (Dimensions in millimeters)ĭrawing space Drawing space Title block Border lines 1. ![]() JIS Z 8311 Sizes and Format of Drawings JIS Z 8312 Line Conventions JIS Z 8313 Lettering JIS Z 8314 Scales JIS Z 8315 Projection methods JIS Z 8316 Presentation of Views and Sections JIS Z 8317 Dimensioning Examples of JIS Standard Code number Contentsĭrawing Standard Drawing Sheet Drawing standard Contentsĭrawing Sheet : Standard size Trimmed paper of a size A0 ~ A4. Standard Code ISO I nternational S tandards O rganization ANSI A merican N ational S tandard I nstitute USA JIS J apanese I ndustrial S tandard Japan BS B ritish S tandard UK AS A ustralian S tandard Australia D eutsches I nstitut f ü r N ormung DIN Germany Country Code Full name มอก. Drawing standards are used so that drawings convey the same meaning to everyone who reads them. Engineering Drawing Dimensions & Notes Visualization Using line types Geometric construction Projection method Contentsĭrawing Standard Drawing sheet Scale Lettering Line types Contentsĭefinition and Necessity Drawing standards are set of rules that govern how technical drawings are represented. Knowledge and Skills Require Graphics language Word language Visualization is the ability to mentally picture things that do not exists. Text on drawings : Example General notes Title block Dimensions & Notes Word language Describe an exact size, location and specification of the object. Graphics language Describe a shape (mainly). Įxample Create a Drawing : Using a computer 2D drawing Solid modeling Computer aided drafting (CAD) software is used.Įlements of a Drawing A clear and precise engineering drawing requires both graphics and word languages. ![]() Surface EdgeĪ drawing can be created in 3 ways Ways to Create an Engineering Drawing Freehand sketch Using typical drawing instruments Using a computer Įxample Create a Drawing : Freehand sketch Pictorial sketch Orthographic sketch The lines are drawn using only pencil and erasers on a blank or grid paper.Įxample Create a Drawing : Using instruments Drawing instruments are used to draw straight lines, circles, and curves concisely and accurately. Features of an object are surface (include plane ) and edge. Graphic Language in Engineering Drawing “ Engineering drawing” or “blueprint” uses l ines to represent the features of an object. ![]() Effectiveness of Graphic Language The word language is inadequate for describing the size, shape and features completely as well as concisely. Test your written description by having someone attempt to make a sketch or visualize from your description. Try to write a description of this object. The psychical entities which seem to serve as elements in thought are certain signs and more or less clear images which can be “voluntarily” reproduced and combined-this combinatory play seems to be the essential feature in productive thought before there is any connection with logical construction in words or other kinds of signs which are communicated to others -Albert Einstein Contentsġ. Engineering Drawing: Chapter 01 introductionĬontents Drawing standards Engineering drawing Drawing sheet Scale Lettering Line typesĮngineering Drawing The words of the language, as they are written or spoken, do not seem to play any role in my mechanism of thought.
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