Orthographic drawings are typically two dimensional views of an object. 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 graphics and autocad 4 1 chapter 4 orthographic projection and multiview constructions understand the basic orthographic.
third angle projection drawings
Orthographic projection is a way of drawing an object from different directions.
Third angle projection drawings. 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. Engineering drawing the activity produces engineering drawings the documents. In the 1st angle projection object lies in 1st quadrant and in between observer and plane of projection.
Puzzled about why only first and third angle projection systems are used in industrial drawings. Click here for third angle orthographic drawing an example. Click here for an introduction to third angle orthographic drawing. 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.
Usually a front side and plan view are drawn so that a person looking at the drawing can see all the important sides. 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.
To draw drawing views front view is projected on vertical plane and top view on horizontal plane. More than merely the drawing of pictures it is also a languagea graphical language that communicates ideas and information from one mind to another.
