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Extension Line In Engineering Drawing

Extension Line In Engineering Drawing - Web extension lines are thin solid lines that indicate the two end points of a feature being dimensioned out to the dimension line. Dimension lines are drawn with an arrowhead at both ends. These lines are drawn as thin, unbroken lines and should not touch the object being dimensioned. Size dimensions indicate the size of basic shapes like arcs, prisms, cylinders, and holes. Web extension lines are used to connect the dimension line to the visible edges of the feature being dimensioned. Extension lines are drawn close to, but never touching, the edges or surface they limit. These lines act as a language that engineers and designers understand to visualize and convey complex ideas accurately. Web dimension and extension lines (figure 6) are thin, solid lines that show the direction, length, and limits of the dimensions of a part. This is also how my textbook, technical drawing with engineering graphics, 15th edition, has it, and this is what we were taught to do in class. This type is also used to draw outlines of adjacent and revolved sections.

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Extension Line In Engineering Drawing

They Are Dark And Thick Lines Of Any Engineering Design Drawing.

It is used to point to the beginning or end of an object, feature, or centerline. Engineering drawings use standardised language and symbols. Web extension lines help define the specific area or section to which the dimension applies, ensuring clarity and eliminating ambiguity. Extension lines cross object lines, center lines, and hidden lines.

Web Extension Lines Are Thin Solid Lines That Indicate The Two End Points Of A Feature Being Dimensioned Out To The Dimension Line.

Web lines in engineering drawing are more than just strokes on paper; Phantom lines are used to represent a movable feature in its different positions. You have heard the saying, “a picture is worth a thousand words”. They extend from the object line and terminate in a break or arrowhead, and are used to.

Usually, The Dimension Line Meets The Extension Line At Right Angles.

The purpose is to convey all the information necessary for manufacturing a product or a part. A leader is a thin line used to connect a dimension with a particular area (figure 24). Leaders are used to indicate information about hole diameters, radii, and other information that occurs as a specific location or on a particular surface on the drawing. They show the exact location of the dimension.

Web Engineering Lines Are Graphical Representations Used In Technical Drawings To Communicate Information About The Shape, Size, And Features Of Objects.

These thin, unbroken lines are started about one sixteenth of an inch from the outline of the object and extend about one eighth of an inch beyond the outermost dimension line. They convey critical information, dimensions, and details that guide the construction of complex structures, machinery, and systems. Web extension lines begin 1.5 mm from the object and extend 3 mm from the last dimension line. These lines are drawn as thin, unbroken lines and should not touch the object being dimensioned.

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