Puzzled about why only first and third angle projection systems are used in industrial drawings. Engineering graphics and autocad 4 1 chapter 4 orthographic projection and multiview constructions understand the basic orthographic. Orthographic drawings are typically two dimensional views of an object.
third angle projection drawings
In technical drawing and computer graphics a multiview projection is a technique of illustration by which a standardized series of orthographic two dimensional pictures is constructed to represent the form of a three dimensional object.
Third angle projection drawings. For instance if you were designing a table you would draw a top view side view and a bottom view. An engineering drawing a type of technical drawing is used to fully and clearly define requirements for engineered items. Usually a front side and plan view are drawn so that a person looking at the drawing can see all the important sides. Click here for an introduction to third angle orthographic drawing.
Up to six pictures of an object are produced called primary views with each projection plane parallel to one of the coordinate axes of the object. Engineering drawing the activity produces engineering drawings the documents. More than merely the drawing of pictures it is also a languagea graphical language that communicates ideas and information from one mind to another. To draw drawing views front view is projected on vertical plane and top view on horizontal plane.
Orthographic projection is a way of drawing an object from different directions. Click here for third angle orthographic drawing an example. In the 1st angle projection object lies in 1st quadrant and in between observer and plane of projection. In engineering why 2nd and 4th angle projection systems are not used.
Orthographic projection is a way of drawing an 3d object from different directions. Usually a front side and plan view are drawn so that a person looking at the drawing can see all the important sides.
