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Dimension and extension lines are used to indicate the sizes of features on a drawing. Section lines (hatching) are used in section views to represent surfaces of an object cut by a cutting plane. Phantom lines are used to represent a movable feature in its different positions. Stitch lines - to indicate a sewing or stitching process.
Dimension lines are used to indicate the size and location of features in an engineering drawing. They provide measurements that define the length, width, height, or diameter of objects, allowing for accurate replication and manufacturing.
9 maj 2023 · How to draw Dimension and Extension Lines in Mechanical Drawing. Rules and typical mistakes to dimension correctly any engineering drawing. This YouTube channel is dedicated to teaching...
21 mar 2021 · Dimension Line: Dimension line is a continuous thin line. it is indicated by arrowheads, it is drawn parallel to the surface whose length must be indicated. Projection or Extension Line: A projection line or extension line, it is a thin line.
Dimension and extension lines (Figure 6) are thin, solid lines that show the direction, length, and limits of the dimensions of a part. Dimension lines are drawn with an arrowhead at both ends. Extension lines are drawn close to, but never touching, the edges or surface they limit.
The dimension line is a fine, dark, solid line with arrowheads on each end. It indicates direction and extent of a dimension. In machine sketches and drawings, in which fractions and decimals are used for dimensions, the dimension line is usually broken near the middle to provide open space for the dimension numerals.
Dimension Lines. Dimension lines are used to show all of the necessary dimensions and clearances on a drawing. Dimension lines run parallel to object lines and show distances with a size dimension. On an NKBA drawing, dimension lines have the numerical dimension in the line itself.
