What does BS mean in technical drawing?
From Wikipedia, the free encyclopedia. BS 8888 is the British standard developed by the BSI Group for technical product documentation, geometric product specification, geometric tolerance specification and engineering drawings.
What are the BS 8888 drawing standards?
BS 8888 is the UK’s national framework standard for engineering drawings and geometrical tolerancing. It covers all of the requirements for the technical specification of products and their component parts. Among other things, it explains the way in which engineering drawings outline and present these specifications.
What is standard dimensioning?
1. Technique of dimensioning: the standard for appearance of lines, the spacing of dimensions, the size of arrowheads, and so on allow others to interpret your drawing. Note the strong contrast between the visible lines of object and the thin lines used for dimensions.
What are the engineering drawing standards?
Conventions are essential for clear, unambiguous written, oral, and graphical communication. Drawings are used by engineers and manufacturing technologists to communicate their ideas and hence good engineering drawings follow conventions which are referred to as drawing standards.
What is dimensioning in engineering 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. 2. Symbol or abbreviation commonly found in a drawing are – “ diameter ” is represented by a symbol “ ”.
What means GD?
Geometric Dimensioning and Tolerancing
GD, short for Geometric Dimensioning and Tolerancing, is a system for defining and communicating design intent and engineering tolerances that helps engineers and manufacturers optimally control variations in manufacturing processes. Sample part.
Why is BS 8888 used?
BS 8888 ensures that its users have access to one reference source with all the relevant information; enables you to speak the same language when specifying and graphically representing products; provides precision and accuracy, leaving no room for misinterpretation; helps the smooth transfer of the design concept to …
What does BS 8888 cover?
Technical Product Specification
BS 8888 implements the ISO system for Technical Product Specification, which covers the definition of work piece geometry, surface and edge requirements, and its presentation in 2D or 3D format.
What are 2 classifications of dimensions?
Types of Dimensions
- Slowly Changing Dimensions.
- Rapidly Changing Dimensions.
- Junk Dimensions.
- Stacked dimensions.
- Inferred Dimensions.
- Conformed Dimensions.
- Degenerate Dimensions.
- Role-Playing Dimensions.
What are dimensions in engineering?
Dimensions. • A dimension is for size and position (of the designed/modeled shape). • A DIMENSION is a numerical value expressed in appropriate units of measurement and used to define the size, location, orientation, form or other geometric characteristics of a part.