Technical Drawing Lecture Notes PDF
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Uploaded by FabulousLapisLazuli5270
Mangaldan National
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Summary
These lecture notes cover technical drawing, including topics like projections (orthographic and isometric) and sections. It explains different types of sections and how they are used to represent three-dimensional objects.
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PROJECTION An orthographic drawing represents a three-dimensional object using several two-dimensional views of the object. It is also known as an orthographic projection. Typically, an orthographic projection drawing consists of three different views: a front view, a top view, and a side...
PROJECTION An orthographic drawing represents a three-dimensional object using several two-dimensional views of the object. It is also known as an orthographic projection. Typically, an orthographic projection drawing consists of three different views: a front view, a top view, and a side view. Isometric drawing is a particular drawing style where the angle between the x, y, and z axes are all 120°, and there is no perspective. An isometric drawing is a pictorial representation of an object in which all three dimensions are drawn at full scale. There are three main rules to isometric drawing: horizontal. edges are drawn at 30 degrees. vertical. edges are drawn as vertical lines. parallel. Parallel lines never meet, no matter how far they are extended. edges appear as parallel lin SECTIONS
