Question: What Does It Mean When A Dimension Is Called Out On A Drawing?

What does ECO stand for?

ECOAcronymDefinitionECOEcologyECOEconomicsECOEngineering, Construction & OperationsECOEconomic Cooperation Organization67 more rows.

What does it mean when a dimension has a box around it?

Basic dimension: A basic dimension is a numerical value used to describe the theoretically exact size, profile, orientation, or location of a feature or datum target. The Basic Dimension has a box around the dimension. … The title block tolerance does not apply to basic dimensions.

What does thru mean on a drawing?

Up to NextFor threads, both end conditions may be set to “Up to Next” for the design intent to be fully captured so that both bore and thread are called-out as “THRU” on the drawing.

What are dimensioning tools?

The Dimensioning tab contains tools that are useful for creating objects which must fit predefined dimensions or for dimensioning objects you have created. These tools can also be accessed via the Tools > Dimensioning menu. They can be used to dimension a line, edge, bounding box, angle, and radius/diameter.

What does a hidden line look like?

A visible line, or object line is a thick continuous line, used to outline the visible edges or contours of an object. A hidden line, also known as a hidden object line is a medium weight line, made of short dashes about 1/8” long with 1/16”gaps, to show edges, surfaces and corners which cannot be seen.

What does it mean to dimension a drawing?

Definition Dimensioning is the process of specifying part’ s information by using of lines, number, symbols and notes . Notes 1. Lines to be used are always thin continuous line. … Symbol or abbreviation commonly found in a drawing are – “ diameter ” is represented by a symbol “   ”.

What are the elements of dimensioning?

The elements of dimensioning include the projection line, dimension line, leader line, dimension line origin indication, its termination, notes, the dimension, etc.

What are the 3 types of drawing dimensions?

The basic types of dimensioning are linear, radial, angular, ordinate, and arc length.

What is a foreshortening?

Foreshortening refers to the technique of depicting an object or human body in a picture so as to produce an illusion of projection or extension in space.

What are the tolerances on basic dimensions?

When features are located using BASIC dimensions by chain dimensioning, there is no accumulation of tolerance between features, because the dimensions refer to the theoretically perfect position of the feature, not the actual location of the feature within the range permitted by tolerances.

What symbolizes a typical dimension?

The term “typical,” when associated with a dimension or feature, means that this dimension or feature applies to the locations that appear to be identical in the size and configuration. The tolerance stated for a dimension labeled “typical” also applies to each identical feature.

What are the 8 rules of dimensioning?

Terms in this set (8)Rule 1: Dimensions should not be duplicated, nor should the same info be given in two different ways.Rule 2: Dimensions should be attached to the view that best shows the contour of the feature being dimensioned.Rule 3: … Rule 4: … Rule 5: … Rule 6: … Rule 7: … Rule 8:

What is double dimensioning?

4.5/5 (66 Views . 14 Votes) Dual dimensioning is the drafting practice of using multiple units of measure in a dimension in the same direction of a feature. SolidWorks and many other CAD programs support dual dimensioning.

What does P stand for in dimensions?

P = poise (dynamic viscosity) Pa = pascal (pressure) pace = 30 in (length) palm = 3 in (length) parasang = 3.5 mile (length)

What are GD&T symbols?

Geometric Dimensioning and Tolerancing (GD&T) is a system for defining and communicating engineering tolerances. It uses a symbolic language on engineering drawings and computer-generated three-dimensional solid models that explicitly describe nominal geometry and its allowable variation.