leader line in engineering drawing

huh March 15, 2022 drawing , in , line Comment

Divide a Line into number of equal parts 1. An extension line extends a line on the object to the dimension line.

Dimension Appearance And Technique

A type B line thin continuous straight going from the instruction to the feature.

. Swing the pencil back and forth between the points barely touching the paper until the direction is clearly established. Tolerance is the amount a particular dimension is allowed to vary. These lines are drawn to make the section evident.

Cutting plane lines are intermittent and thick. In technical drawings the standards of the leaders and arrows are very important. C Continuous thin wavy line.

A leader line is a line referring to some form of feature that could be a dimension an object or an outline. The ISO type C lines are thin wavy and continuous as shown in Figure 37. Vi Leader Lines A leader or a pointer is a thin continuous line connecting a note or a dimension figure with the feature to which it applies.

Leaders are more thin lines used to point to an area of a drawing requiring a note for explanation. A Continuous thick line. A 14To draw the leader line which type of the following line is used.

The thickness of the lines must be chosen according to the type and size of the drawing from any of the six groups given in Table 1. Following are the different types of lines used in engineering drawing. Leader line is the thin solid line used to indicate the feature with which a dimension note or symbol is associated.

Leaders should have a uniform and consistent appearance at all drawings independently of the drawing scale. H Border Lines B. B One end of the leader terminates either in an arrowhead or a dot.

These are drawn may be vertical or inclined to indicate the height of the dimension figure. Plus and minus dimensioning is the allowable positive and negative variance from the dimension specified. Draw the line firmly with a free and easy wrist-and-arm motion.

One end of the leader terminates either in an arrowhead or a dot. C Leader lines are used to direct an expression in note form to the intended place on the drawing. 7 Thin chain line find its application as.

What are the types of line in drawing. This line is used to represent the center line for circles and arcs. You can see the general standards that are used generally below.

A drawing leader consists of an arrow and a text. C type Continuous THIN Freehand. Which it refers with a leader line which terminates with an arrowhead touching the edge of the item or a dot on the surface of the item.

B Dimension lines show the direction and extent of dimension. C The leader is drawn vertical or horizontal or curved. 4 5 and 6.

A A leader line is a thin continuous line connecting a note or a dimension figure. B type Continuous THIN. Related Questions on Engineering Drawing.

Leader lines should not cross one another and the number of times they cross other lines should be minimized. For More Engineering Drawing MCQ Click Here. Leader line is drawn to connect a note with the feature to which it applies.

D Use of common leaders for more than one feature should never be made. Set the divider to a convenient length and mark off seven spaces on AC. Extension lines begin 15 mm from the object and extend 3 mm from the last dimension line.

These are thin continuous lines drawn from a dimension figure to the feature to which it refers. Continuous thin line find its application in engineering drawing as Dimension line Projection line Leader line. Last Updated on Wed 24 Nov 2021 Engineering Drawing.

Join 7tothe point B. For general engineering drawings the types of lines recommended by the Bureau of Indian Standards shown in table 2 must be used. Figure 34 Engineering drawing line types A to K ISO 1281982 leader lines cross hatching outlines of revolved sections short centre lines thread routes and symmetry equals signs.

Where a leader line is used to point towards the feature being dimensioned. Leader Hatching type lines must be drawn thin and continuous. A leader is a thin line used to connect a dimension with a particular area figure 24.

They are uniformly spaced about 1 mm to 2 mm apart. Engineering Working Drawings Basics Page 1 of 22 Engineering Working Drawings Basics Engineering graphics is an effective way of communicating technical ideas and it is an essential tool in engineering design where most of the design process is. Perfectly rectangular working space is determined by drawing the border.

Leader line is drawn may be 30 or 60 to the bottom of dimensions. G Leader or Pointer Lines B. In drawings that do not have cutting planes visible lines will be the thickest lines drawn.

This line is used to show hidden edges of the main object. Draw a straight line AB. Draw a line AC at any convenient acute angle with AB.

They are preferably drawn at a 45 angles. Cutting plane lines are used to show where the section plane is taken on the part. Visible lines are drawn as solid thick lines.

It is a continuous thin line. The first dimension line should be approximately 12 mm 06 in from the object. A leader line consists of two parts.

A Extension lines are used to indicate the extension of an edge or point to a location outside the part outline. This line is used to represent the location of a cutting plane. A type Continuos Thick.

More specifically the arrow size arrow inclination the text size allow line weight etc should all be the same for all leaders in. Hold the pencil naturally. 13The primary unit of measurement for engineering drawings and design in the mechanical industries is the.

Let the points obtained be l23456 and7. This line is located in front of cutting planes outlines of adjacent parts censorial Lines and to state center of gravity. Draw lines through points 1 2 3.

The leader line should terminate in an arrowhead or dot. B Long chain thin line. Leader or Pointer Lines.

If an exploded view is present the item numbers should appear only on that view. Spot the beginning and end points.

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