Step I: Draw the projections of the given solid in the uncut condition using thin lines. Step II: Draw the cutting plane as a line in the front or top view depending upon whether it is perpendicular to the VP or the HP. If the cut is a cylindrical or prismatic hole, it will be drawn as…
The following steps can be used to draw sectional views: Step I: Draw the projections of the given solid in an uncut condition in both the views (the FV and the STY) by thin construction lines. Step II: Draw the cutting plane (or the section plane) as a straight line inclined at B to the XY line…
For drawing projections of solids, one has to frequently draw projections of lines either parallel to the HP or the VP and inclined to the other with an angle that is between 0 to 90°.Similarly, sometimes, the projections of plane surfaces Perpendicular to one and inclined to the other are required to be drawn. Importance…
1. Plane perpendicular to one reference plane and parallel to the other (one step) If it is parallel to the VP and perpendicular to the HP, its front view is drawn with the true shape and size and the top view is a horizontal line. If it is parallel to the HP and perpendicular to…
Important Notation In Engineering Graphics · HP means the Horizontal Plane · VP means the Vertical Plane · FV means the Front View · TV means the Top View · SV means the Side View · STV means the Sectional Top View · GR means the Ground · TL means the True Length · CP means the Cutting Plane · PPP means the Picture Plane…
In order to achieve a complete shape description, it is necessary to get more than one projection, and therefore, additional planes of projection are used to project more views on them, for the object. As such, the orthographic system of projection is also called multi-view projection method. In the orthographic projection drawing, for getting the…
The perspective projection, also sometimes called scenographic projection or central projection, is the form of pictorial drawing which most nearly approaches the pictures as seen by the eyes. Perspective projection is sometimes called scenographic projection or central projection, since the lines of sight converge to a single point or centre. Perspective obtained will depend on…
The isomeric projection of an object is obtained on a vertical plane of projection by placing the object in such a way that its three mutually perpendicular edges make equal inclinations with the plane of projection. Since the three mutually perpendicular edges of an object are projected in the isometric projection at equal axonometric angles,…
A layout of the complete surface of a three dimensional object on a plane surface is called its development or pattern. Development is a term frequently used in sheet metal work where it means the unfolding or unrolling of a detail into a flat sheet called a pattern There are three methods of pattern development;…
Projection of Solids: A solid is a three dimensional object having length, breadth and thickness. It is Completely bounded by a surface or surfaces, which may be curved or plane. The shape of a solid is described orthographically by drawing its two orthographic projections, usually, on the two principal planes of projection i.e., HP and…