Orthographic projection drawing consists of three different views front view, top view and side view and for clarity more views are used and usually, the view is the right side. Video describes the theory of projection and basics of orthographic projection. Orthographic views of any purpose can be represented by any one of the two systems of projection. Drawing a first angle orthographic projection Step 1 – Begin by drawing light pencil lines to create the boxes that will contain the front elevation and the plan. Show hidden detail where necessary and fully dimensions your drawing. It is named according to the quadrant in this which the object is imagined no place for purposes of line projection. The definition Orthographic projection is a method of producing a number of separate two-dimensional inter-related views. These views collectively describe the object. Exercises. The 1st angle projection system is more popular in European countries. 5. DRG. 40 20 30 square 20 50 60 30 10 f.v. Step 2 – Draw a 45º line from the front elevation box. by first angle projection method orthographic projections 16 x y fv sv all views identical 40 60 60 40 10 top view . Whereas 3rd angle projection is more popular in North America and Asian countries. Orthographic Projection > First angle Learning outcome: I can recognise the direction of viewing used to derive the various views in first angle projection I can project the elevations of a simple solid in first angle projection By the end of the lesson I will be able to: Draw a … It is mainly used in Europe and Asia and has not been officially used in Australia for many years. s.v. ... First Angle Projection (Used in Europe, Asia & Africa) or Third Angle Projection … Figure 4-3 shows an object with front and top orthographic views created using third-angle and first-angle projections. Draw three views of the following components, either in first or third angle projection. 4. For third-angle projections the orthographic view is projected on a plane located between the viewer’s position and the object. To apply the principle of First Angle Orthographic Projection to engineering drawing problems. ORTHOGRAPHIC PROJECTION ALL DIMENSION IN MILLIMETRES ORTHOGRAPHIC PROJECTION Exercises mod - … These views are drawn mutually at right angle to each other. These projections in either a first or third angle projection are working drawings. 4-2 Third- and First-Angle Projections. First angle projection is a method of creating a 2D drawing of a 3D object. In Australia, third angle projection is the preferred method of orthographic projection.Note the symbol for first angle orthographic projection. First angle and third angle projection are the types of Orthographic projection systems that are used to draw engineering drawings. The first angle projection and the third angle projection. o pictorial presentation is given draw fv and sv of this object by first angle projection method 17 orthographic projections front view l.h.side view In this article, You gonna learn about Orthographic Projection, Drawing; Its views, principles, systems i.e.,first angle projection, third angle projection. Orthographic Projection is a method of producing dimensioned working drawings or blueprints of 3-D Objects using a series of related 2-D views of the object to communicate the object's length, width and depth. To recognise the symbol for First Angle Orthographic Projection.