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Toolset for software development of DXF/DWG interfaces for reading and writing of DWG and DXF files. Based on OpenDWG specification serving the DWG format used by various programs, such as AutoCAD. Compatible with all DWG versions from 2.5 to 2008. Download requires registration.

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Small CAD viewer for opening and printing DGN, DWG and DXF files. Uses MicroStation graphics engine to display 2D drawings and 3D CAD models. Offers zooming, panning and rotating functions, measures the distance between two points and determines the length of a line. Download requires registration.

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Software for 3D mesh editing and additive manufacturing. Creates watertight objects and can repair damaged linkages. Offers tools for the implementation of CAD models, including part manufacture. Supports STL, X3D, WRL, GTS, CLI, SLI, SLC, SSL, CLS and G-Code formats. Version for commercial use offers extra modules. Fast and secure download from The H

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Wind tunnel simulation tool for interactively investigating the aerodynamic properties of product designs. Available as an add-on for programs in the Alias Automotive, Design and Surface product series, as well as a standalone version for STL files. Download requires registration.

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Converts PDF files to AutoCAD DWG and DXF files. Multiple files can be converted simultaneously. Also available as an add-in for AutoCAD versions 2007, 2006, 2004, 2002 and R14.

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Free viewer for displaying and measuring DWG, DWF and DXF files. Offers Xref support for displaying levels and block attributes.

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Plans and displays interior spaces. Uses DWG format and processes 2D and 3D data such as SKP, DXF and 3DS. Provides tools for drawing spaces and equipping them with objects/materials. Planning scenes can be rendered as an image or a movie. Fast and secure download from The H

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Software for processing scanned drawings and geographical templates for CAD, GIS or archiving applications; runs under Windows or as an AutoCAD add-in.

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Extensive CAD solution for technical drawings and sketches with native DWG support; also with customisable 2D and 3D design tools.

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Static analysis tool with more than 30,000 profiles for metal and woodworkers, building contractors and engineers. Provides automatic calculations for loads, statics, fire resistance, reinforcement and foundations with precise pre-dimensioning of (inclined) steel beams and columns, reinforced concrete, wood, laminated beams, aluminium and laminated safety glass.

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2D CAD program for expanding AutoCAD, SketchUp or AutoCAD LT. Offers extended editing functions based on handles, with direct access to a wide range of tools, such as those used for special lines, arcs, circles, Bezier curves and ellipses with a fixed ratio. Can open and store all DWG, DXF and DWF files from AutoCAD R14 (1997) to 2009. Pro version also available.

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Allows you to build virtual Lego bricks on top of one another using your PC. You can construct buildings, vehicles and other models and, to help make your virtual models real, just press a button and the program produces a list of all the bricks you need. For inspiration, it comes supplied with various construction manuals.

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OCR software for converting raster data into vector data to get the best possible results from raster images, maps, aerial photos, satellite images and Digital Elevation Models (DEMs). The integrated raster editing and vectoring tools are designed to make it easier for you to edit images and to manage and optimise scanned drawings and plans.

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This tool enables you to calculate materials’ dead weight and snow and wind loads quickly and accurately in accordance with the European norms for six countries (Germany, Austria, Switzerland, Belgium, the Netherlands and Luxemburg). Can calculate the exact dead weights in 2D and 3D for a total of almost 24,000 materials.

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3D and 2D CAD viewer and converter that imports and converts native CATIA V4/V5, Pro/E, Inventor, STEP, IGS, VDA, SAT, STL, VRML, DXF and DWG files. Provides dimensioning, sections, explosions, animations and 3D PDF export.

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CAD program for creating designs from building blocks. Offers more than 1,000 types of building block.

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