Drafting


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drafting

[′draf·tiŋ]
(graphic arts)
The making of drawings of objects, structures, or systems that have been visualized by engineers, scientists, and others.
(textiles)
The process of lengthening raw fibers, in the form of slubbing, sliver, or roving, to make the stock look more like yarn.
Plotting directions for weaving on cross-section paper, showing the movement of the threads.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Drafting

 

one of the basic processes in spinning; it thins half-finished products—slivers and rovings—to obtain yarn of desired fineness. The yarn is thinned by lengthening the product through the displacement of the yarn’s fibers. The fibers, under the action of mutual friction, straighten out and lie parallel, creating yarn with better structure. The Russian scientist N. A. Vasil’ev is the founder of the theory of drafting. Drafting is done by drafting machines.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

Drafting

The making of drawings of objects, structures, or systems that have been visualized by engineers, scientists, or others. Such drawings may be executed in the following ways: manually with drawing instruments and other aids such as templates and appliqués, freehand with pencil on paper, or with automated devices.

Engineers often draft their own designs to determine whether they are workable, structurally sound, and economical. However, much routine drafting is done under the supervision of engineers by technicians specifically trained as drafters. See Computer graphics, Engineering drawing

Graphic symbols have replaced pictorial representations leading to the introduction of templates that carry frequently used symbols, from which the draftsman quickly traces the symbols in the required positions on the drawing.

Where the design procedures from which drawings are developed are repetitive, computers can be programmed to perform the design and to produce their outputs as instructions to automatic drafting equipment. Essentially, automated drafting is a method for creating an engineering drawing or similar document consisting of line delineation either in combination with, or expressed entirely by, alphanumeric characters.

The computer receives as input a comparatively simplified definition of the product design in a form that establishes a mathematical or digital definition of the object to be described graphically. The computer then applies programmed computations, standards, and formatting to direct the graphics-producing device. This method provides for close-tolerance accuracy of delineation and produces at speeds much greater than possible by manual drafting. In addition, the computer can be programmed to check the design information for accuracy, completeness, and continuity during the processing cycle.

McGraw-Hill Concise Encyclopedia of Engineering. © 2002 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
(35) For example, if a statute is drafted in a partisan manner through a committee, it makes sense to look at the statements of the members of that committee of the drafting political party; but if the statute was drafted in a bipartisan manner on committee, statements from members of both parties might be legitimate.
However, in some cases, agencies and the White House are actually the primary drafters of the statute, and in other cases they provide consistent feedback and "technical assistance" throughout the drafting process.
Indeed, some theories of statutory interpretation seem to be at least partly predicated on the role that legislators and staff play in the drafting process.
The drafting process was the most time-consuming part of the IPO and needed the most improvement.
Is there a significant difference between the students who learned drafting from instructor 1 and students who learned drafting from instructor 2, with respect to a student's achievement in drafting?
Is there a significant interaction between method of drafting and instructor, with respect to a student's achievement in drafting?
Is there a significant difference between the students who learned drafting using the traditional drafting tools and students who learned drafting using the CAD system, with respect to attitude toward drafting?
Moreover, all proceedings by the drafting body must be open to the public.
The people's participation in drafting the new constitution is critical as well.
There must be mechanisms that will allow the public to submit proposals to the drafting body as well as be heard during sessions.