Construction, Steps, Example Problems | Engineering Graphics (EG)
Subject and UNIT: Engineering Graphics: Unit IV (a): Sections of Solids
A Hexagonal pyramid of base side 25 mm and altitude 60 mm rests on its base on HP with two edges of the base perpendicular to VP.
Construction, Steps, Example Problems | Engineering Graphics (EG)
Subject and UNIT: Engineering Graphics: Unit IV (a): Sections of Solids
Since the cutting plane is parallel to HP, section obtained in top view itself is the true shape of section.
Construction, Steps, Example Problems | Engineering Graphics (EG)
Subject and UNIT: Engineering Graphics: Unit IV (a): Sections of Solids
The pictorial view of the cube with cutting plane is shown in Fig. 15.11(i), cut by a Horizontal plane 5-6-7-8, 15 mm above HP.
Engineering Graphics (EG)
Subject and UNIT: Engineering Graphics: Unit IV (a): Sections of Solids
Sections of below mentioned simple solids are presented in the following articles, mainly considering the solids in simple vertical position and cutting by different types of cutting planes.
Engineering Graphics (EG)
Subject and UNIT: Engineering Graphics: Unit IV (a): Sections of Solids
If a solid is sectioned by a plane and it is projected to a plane parallel to it, the shape of the section obtained will be exactly the section exposed by the cutting plane.
Engineering Graphics (EG)
Subject and UNIT: Engineering Graphics: Unit IV (a): Sections of Solids
Drawing of sectional views is an extension of projections of solids.
Engineering Graphics (EG)
Subject and UNIT: Engineering Graphics: Unit IV (a): Sections of Solids
Front view (or) Top view will be in section depends on the type of cutting plane with respect to the reference planes, which are summarised below:
Sections of Solids | Engineering Graphics (EG)
Subject and UNIT: Engineering Graphics: Unit IV (a): Sections of Solids
The shape of the sectioned surface depends upon the orientation of the solid with respect to the reference planes and the orientation of the cutting plane with respect to the principal planes of projections.
Engineering Graphics (EG)
Subject and UNIT: Engineering Graphics: Unit IV (a): Sections of Solids
The section is indicated by a closed boundary using thickline and is filled with section lines.
Engineering Graphics (EG)
Subject and UNIT: Engineering Graphics: Unit IV (a): Sections of Solids
A cutting plane is represented by its trace drawn in thin chainlines thickened at ends.
Engineering Graphics (EG)
Subject and UNIT: Engineering Graphics: Unit IV (a): Sections of Solids
A solid is cut by an imaginary plane and the portion of the solid in between the imaginary plane and observer is assumed to be removed to show the internal details of the solid.
Engineering Graphics (EG)
Subject and UNIT: Engineering Graphics: Unit IV (a): Sections of Solids
Orthographic projections of an object is drawn to understand the position and dimensions clearly.