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www.ldraw.org The Centralized LDraw Resouces. LDraw is an open standard for LEGO CAD programs that allow the user to create virtual LEGO models and scenes. You can use it to document models you have physically built, create building instructions just like LEGO, render 3D photo realistic images of your virtual models and even make animations.
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leocad.gerf.org LeoCAD is a CAD program that uses bricks similar to those found in many toys (but they don't represent any particular brand). Currently it has a library of more than 1000 different pieces, most of them were created by James Jessiman (the author of LDraw).
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www.lm-software.com/mlcad MLCad (Mike's Lego CAD) is a powerful CAD system specifically designed to create building instructions as known from Lego. MLCad reads and writes LDraw (a program of James Jessiman) compatible files.
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www.povray.org POV-Ray. The Persistence of Vision Raytracer is a high-quality, totally free tool for creating stunning three-dimensional graphics.
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bricksmith.sourceforge.net Bricksmith allows you to create virtual instructions for your Lego creations on your Mac. The magic is based on the LDraw library, a collection of 3D models of Lego building blocks created by enthusiasts from around the world.
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www.philohome.com/isecalc/isecalc.htm LDraw tools for parts authors (by Philippe Hurbain): These tools calculate and generate various LDraw files useful in parts creation. Philo wrote Isecalc and Linetrim programs while creating spokes of wheel 55982 as calculating intersections of spokes (60° apart) with rims cylinders (facets 22°5 apart) was tedious at best!
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www.kclague.net/LSynth/index.htm lsynth is a program that reads in LDRAW format files, and writes out the files with synthesized benable parts. lsynth synthesizes these kinds of tubes: ribbed tubes, pneumatic hoses, flexible and rigid hoses, electrical cable, flexible axles and fiber optic cables as well as rubber bands, rubber tread, plastic tread and chain. LSynth is a simple GUI that gives you access to the command prompt synthesizer lsynthcp.
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www.kclague.net/LPub LPub is a program that produces step by step building instructions from DAT/LDR/MPD files created using an LDraw compatible editor. LPub combines the power of L3P and LDraw Compatible Editors to make it easy to produce high quality step by step construction documentation for LEGO designs.
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factory.lego.com LEGO Factory lets you design our own models with a 3D designer tools.
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web.telia.com/~u16122508/proglego.htm BlockCAD (by Anders Isaksson) is a freeware program for building virtual models with Lego-like bricks. You can save your models, or save pictures of them (.bmp, .jpg), even reuse a complete model as a part in another model. Everything can be controlled with the mouse, but it's also possible to use the keyboard for most of the commands, making 'routine building' more effective, and there is a minimum of text involved, to make it easier for kids.
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web.telia.com/~u16122508/ankercad.htm AnkerCAD (by Anders Isaksson) is a freeware program for building virtual models with bricks ('AnkerSteine'). It is a spin-off from BlockCAD, and was inspired by Burkhard Schulz, who has made all the stone definitions. If you don't know what AnkerSteine (AnchorStones) are, you can take a look at the manufacturer's page, or one of the enthusiasts page. With AnkerCAD you can save your models, or save pictures of them (.bmp, .jpg), even reuse a complete model as a part in another model.
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staff.polito.it/sergio.reano SR 3D Builder (by xSergio) offers a new way to build your LEGO® models with a amazing simple 3D graphic interface. You can easily load model from other known programs: it supports the following formats .dat, .ldr and .mpd (most metacommand are currently not supported).
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k.webring.com/hub?ring=ldraw Webring LEGO LDraw. The LDraw Webring is a ring created for users of the LDraw Lego-related cad program who display their creations on their site.
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www.geocities.com/pneaster/lego_index.htm Paul's LDraw page with many new,revised and planned parts, utilities and more...
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l3pao.malagraphixia.com L3P is a DOS-Based program written by Lars C. Hassing to convert James Jessiman's LDraw files (.ldr, .mpd, .dat) into .pov files which can be used in the freeware renderer POV-Ray.
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www.geocities.com/Eureka/Gold/3269/dat2dxf.html DAT2DXF (by ACME Software Labs), a Ldraw to DXF Converter. This windows program converts from the Ldraw to DXF format.
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sourceforge.net/projects/ldrawconverter LdrawConverter is a converter which could convert the LDraw LEGO geometry file format in different other geometry formats used by various 3D rendering programs.
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www.cgv.tugraz.at/CGV/People/people/havemann Sven Havemann (Institut für ComputerGraphik und WissensVisualisierung), Interactive 3D Modeling and Visualisation Generative Modeling Language (GML), lots of interesting 3d LEGO modeling stuff.
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ww3.cad.de CAD.de is the largest and most active German-speaking community for CAD-CAM-CAE and EDM / PDM / PLM. Lots of interesting things about ldraw.
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sketchup.google.com/3dwarehouse/cldetails?mid=26d528c1c35774f056ed665b21152bcd 3D Lego Technic and Mindstorms NXT Parts with Google Sketchup by paytonrwhite.
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LEGO CAD modeling
