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  2. Drafting machine - Wikipedia

    en.wikipedia.org/wiki/Drafting_machine

    A drafting machine is a tool used in technical drawing, consisting of a pair of scales mounted to form a right angle on an articulated protractor head that allows an angular rotation. [ 1 ] [ 2 ] The protractor head (two scales and protractor mechanism) is able to move freely across the surface of the drawing board , sliding on two guides ...

  3. Technical drawing - Wikipedia

    en.wikipedia.org/wiki/Technical_drawing

    Technical drawing, drafting or drawing, is the act and discipline of composing drawings that visually communicate how something functions or is constructed. Technical drawing is essential for communicating ideas in industry and engineering .

  4. Engineering drawing abbreviations and symbols - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing...

    computer-aided design, computer-aided drafting; cadmium [plating] CAGE: Commercial and Government Entity [code] A CAGE code is a unique identifier to label an entity (that is, a specific government agency or corporation at a specific site) that is a CDA, ODA, or MFR of the part defined by the drawing. One corporation can have many CAGE codes ...

  5. Drafter - Wikipedia

    en.wikipedia.org/wiki/Drafter

    Traditional drafter at work A drafter in Portugal in the 1970s, using a drafting machine. A drafter (also draughtsman / draughtswoman in British and Commonwealth English, draftsman / draftswoman, drafting technician, or CAD technician in American and Canadian English) is an engineering technician who makes detailed technical drawings or CAD designs for machinery, buildings, electronics ...

  6. Technical drawing tool - Wikipedia

    en.wikipedia.org/wiki/Technical_drawing_tool

    A drafting machine allows easy drawing of parallel lines over the paper. The adjustable angle between the rulers allows the lines to be drawn in varying accurate angles. Rulers may also be used as a support for separate special rulers and letter templates. The rules are replaceable and they can be for example scale-rules.

  7. Engineering drawing - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing

    When part definition is defined mathematically via a solid model, the assertion that one cannot interrogate the model—the direct analog of "scaling the drawing"—becomes ridiculous; because when part definition is defined this way, it is not possible for a drawing or model to be "not to scale". A 2D pencil drawing can be inaccurately ...

  8. Draft (engineering) - Wikipedia

    en.wikipedia.org/wiki/Draft_(engineering)

    A cylinder with longitudinal draft Profile view of a drafted cylinder with the draft dimension. In engineering, draft is the amount of taper for molded or cast parts perpendicular to the parting line.

  9. Digigraphics - Wikipedia

    en.wikipedia.org/wiki/Digigraphics

    Digigraphics was one of the first graphical computer aided design systems to go on sale. Originally developed at Itek on the PDP-1 as EDM (Electronic Drafting Machine), the efforts were purchased by Control Data Corporation and ported to their machines, along with a new graphics terminal to support it.