Where are dimension lines typically placed on a construction drawing?

Dimensions are placed on the floor plan. Note that the dimension lines are drafted lighter than wall lines and are generally done as a continuous group or string of numbers along a line. The extension line begins slightly away from the object (a minimum of Vi6 inch or 1.58 mm), never touching it.

Where should dimension lines be placed?

4. Dimensions should be given to finished surfaces or between important center lines (not to rough surfaces) wherever possible.

Where are dimensions placed on drawings?

Dimensions should be written on a drawing, according to one of the following two methods. Only one method should be used on any one drawing. Dimensions should be placed parallel to the dimension lines and preferably near the middle, above and clear off the dimension line (Fig. 16a).

How should dimension lines be drawn?

Dimension lines should be spaced uniformly throughout the drawing. They should be at least 3/8″ from the object outline and 1/4” apart. 13. No line of the drawing should be used as a dimension line or coincide with one.

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What is dimension line drawing?

You can draw dimension lines to indicate the measurements of objects in a drawing, such as length, width, height, depth, and distance. Dimension lines indicate the measurements of objects in a drawing.

Which should never be used as a dimension line?

Explanation: An outline or a centre line should never be used as a dimension line. A centre line may be extended to serve as an extension line.

What does it mean when a dimension is called out on a drawing?

Directly toleranced dimensions, use the tolerances called out in the drawing format, or have the tolerance included in the dimension. … Appropriate tolerances are called out in a Feature Control Frame.

What are the standard sizes of drawing sheets?

Drawing Size Reference Table, Architectural and Engineering Drawing Sizes

Standard US Engineering Drawing Sizes
Drawing Size Dimensions (millimeters) Dimensions (inches)
ANSI A 215.9 x 279.4 8.5 x 11
ANSI B 279.4 x 431.8 11 x 17
ANSI C 431.8 x 558.8 17 x 22

What are the two basic kinds of dimensions?

There are two types of dimensioning systems one is Aligned system and another is Unidirectional system.

What are the general rule of dimensioning?

Dimensions should NOT be duplicated, or the same information given in two different ways. Don’t over-‐define or under-‐define the object. 2. No unnecessary dimensions should be used – only those needed to produce or inspect the part.

How many views do we need to completely describe a block?

Three views are not always necessary; we need only as many views as are required to describe the object fully. For example, some objects need only two views, while others need four.

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Why are dimensions important in drawing?

The sizes of parts and overall sizes of assemblies are conveyed by dimensions placed on the drawing. The basic objective in dimensioning a drawing is to give the manufacturing or construction personnel the dimensions they need to do their work without requiring them to add, subtract, or estimate distances.

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