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TECHNICAL DRAWING - Coggle Diagram
TECHNICAL DRAWING
ORTHOGRAPHIC VIEW
It's a way to show a 3D figure in a 2D drawing. It shows the liteal shapes and sizes of the object and it only uses traight lines.
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FRONT/TOP/SIDE VIEW
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Top: you're positioned above the object, looking down. It's used to see the width and lenght of your object
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Side: You look to the object from the left side. It's used to see the depth and the height of the object
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DIMENSIONING
Shows the size and the position of the object. It uses standard units like milimiters. It also uses extension and dimension lines, and avoids using repetitive mesurement.
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LINES
CENTRE LINE: composed by a sequence of long-short-long lines. It's a reference line thet marks the middle of the drawing.
VISIBLE EDGE: it's the thickest line in the drawing and the one that marks the outline and every edge you can see.
HIDDEN EDGE:it never touches the outline. It's covered by material and it must begin and end with a dash.
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