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  2. AutoCAD version history - Wikipedia

    en.wikipedia.org/wiki/AutoCAD_version_history

    The first release of the software started with version 1.0 in December 1982. [1] The software has been continuously updated since its initial release. AutoCAD opens documents with DWG compatibility as a "DWG file format version code" where the specific version code can be found by opening the .dwg file in Windows Notepad or any text editor program.

  3. .dwg - Wikipedia

    en.wikipedia.org/wiki/.dwg

    DWG is merely descriptive of applicant's goods under Section 2(e)(1) of the Trademark Act for two reasons: (1) DWG is a recognized abbreviation for "drawing," and (2) .dwg is a file format used for computer-aided design (CAD) drawings made both with applicant's CAD software and others' CAD software. Autodesk appealed the decision.

  4. Open Design Alliance - Wikipedia

    en.wikipedia.org/wiki/Open_Design_Alliance

    Open Design Alliance is a nonprofit organization creating software development kits (SDKs) for engineering applications. ODA offers interoperability tools for CAD, BIM, and Mechanical industries including .dwg, .dxf, .dgn, Autodesk Revit, Autodesk Navisworks, and .ifc files and additional tools for visualization, web development, 3D PDF publishing and modeling.

  5. FreeCAD - Wikipedia

    en.wikipedia.org/wiki/FreeCAD

    The FreeCAD 1.0 version includes several new features, such as the new assembly workbench; fixes for many bugs, including the topological naming problem; unification and correction of many workbenches; very diverse changes and improvements in the user interface and user experience (UI/UX); [20] and a new logo, chosen from five finalists of the ...

  6. 2-6-0+0-6-2 - Wikipedia

    en.wikipedia.org/wiki/2-6-0+0-6-2

    2-6-0+0-6-2 Garratt production list – All manufacturers [1] [2] Gauge Railway Class Works no. Units Year Builder 10 + 1 ⁄ 4 in: Wells & Walsingham Light Railway: 1 1986 Neil Simkins 10 + 1 ⁄ 4 in: Wells & Walsingham Light Railway 1 2010 Wells & Walsingham Light Railway: 2 ft: South African Railways: NG G11 5975-5977 3 1919 Beyer, Peacock ...

  7. AutoCAD - Wikipedia

    en.wikipedia.org/wiki/AutoCAD

    A man using AutoCAD 2.6 to digitize a drawing of a school building. AutoCAD was derived from a program that began in 1977, and then released in 1979 [5] named Interact CAD, [6] [7] [8] also referred to in early Autodesk documents as MicroCAD, which was written prior to Autodesk's (then Marinchip Software Partners) formation by Autodesk cofounder Michael Riddle.

  8. Draisine - Wikipedia

    en.wikipedia.org/wiki/Draisine

    In the United States, railbike tours have operated in several states nationwide: California, [4] Maine, [5] Oregon, [6] the Adirondack Mountains of upstate New York, [7] and Delaware. [ 8 ] Until 2007, Finland hosted an annual competition, Resiina-ralli ( Draisine Rally ), involving several draisine teams travelling for many days on the ...

  9. AutoCAD DXF - Wikipedia

    en.wikipedia.org/wiki/AutoCAD_DXF

    DXF was introduced in December 1982 as part of AutoCAD 1.0, and was intended to provide an exact representation of the data in the AutoCAD native file format, DWG (Drawing). For many years, Autodesk did not publish specifications, making correct creation of DXF files difficult. Autodesk now publishes the incomplete [3] DXF specifications online.