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It introduces common blueprint line types as fundamental tools for reading plans. It then covers orthographic blueprints, describing how two-dimensional views represent three-dimensional objects using top, front, and right views or a six-side method. 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Listed below are examples of the most common lines used in blueprints today. Take the time to memorize each type of line and know its uses too.  \n9/14/2011 2  \nMatt Scott  \n9/14/2011 3  \nMatt Scott  \nOrthographic Blueprints  \nOrthographic (ortho) views are twodimensional drawings used to represent or describe threedimensional objects. The ortho views represent the exact shape of an object seen from one side at a time as you are looking perpendicularly to it without showing any depth to the object.  \nPrimarily, three ortho views (top, front, and right) adequately depict the necessary information to illustrate the object. Sometimes, only two ortho views are needed as in a cylinder. The diameter of the cylinder and its length are the only dimension information needed to complete the drawing. A sphere only needs the diameter. It is the same from all angles and remains a perfect circle in the ortho drawing.  \nThe \"six\" side method is a process of making six primary ortho views that represent the entire image. This method gives you all the information to create the object from different isometric views.  \n9/14/2011 4  \nMatt Scott  \n9/14/2011 5  \nMatt Scott  \nPictorial Drawings to Orthographic Projections  \nIn this section the student is to convert the pictorial drawing to an orthographic view by using the correct lay out technique.  \nPortland Community College  \nWelding Technology Class Project –  \nConvert the pictorial drawing to an orthographic projection.  \nName   Date    \n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |\n|  |  |  |  |  |  |  |  |","cbCaitJa8VMj1TIN","https://ap.wps.com/l/cbCaitJa8VMj1TIN","pdf",2735573,28,"English","# Definitions of Lines\n# Orthographic Blueprints\n## Common ortho views and object dimensions\n## The six side method\n# Pictorial Drawings to Orthographic Projections\n# Welding Technology Class Project","[{\"question\":\"What are the basic blueprint communication elements used in the document?\",\"answer\":\"The document states that lines are the basic communication tool used in blueprints and highlights the importance of memorizing common line types and their uses.\"},{\"question\":\"How do orthographic (ortho) blueprints represent three-dimensional objects?\",\"answer\":\"Orthographic views are described as two-dimensional drawings that represent the exact shape of an object from a perpendicular viewpoint, without showing depth.\"},{\"question\":\"What is the class project task described in the document?\",\"answer\":\"The welding technology class project requires converting a pictorial drawing into an orthographic projection.\"}]","Blueprint Reading Basics - For Welding Fabrication - A Guide to Orthographic Projections and Line Definitions | PDF",71]