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Technical Drawing - Coggle Diagram
Technical Drawing
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Lines
Visible
Line used to show edges, boundaries or features of an object that can be seen directly.
Hidden
Line used to show edges, boundaries or features of an object that cannot be seen.
Centre
Line used to mark the axis of symmetry, center point or central axis of circular and cylindrical features.
CAD
2D
Digital drawing process used to create flat, precise technical drawings using lines along X and Y axes.
3D
Digital drawing process that uses software to build virtual models with height, width and depth instead of flat lines in 2D.
Angles
First
Method used to represent a three-dimensional object where the object is placed between the observer and the projection plane.
Third
Method used to show a three-dimensional object in two-dimensions by placing the transparent projection plane between the observer and the object.
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Dimensioning
Process of adding measurements, lines, symbols and notes to plan the exact features of a certain object.