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What is LDraw?

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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. The possibilities are endless. Unlike real LEGO bricks where you are limited by the number of parts and colors, in LDraw nothing is impossible.


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Latest News

The MLCad.ini file has been updated according to the latest LDraw.org Parts Update 2010-02. The .ini file defines (among other things) the parts available in MLCad's and Bricksmith's minifigure generator.

Download the file from: http://www.holly-wood.it/mlcad/ini-en.html

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Published By Holly-Wood on Jul 05, 2010 - 12:33 PM

The 2010-02 LDraw parts update has been now been released.

This update includes 950 files in the core library, including 471 new parts, and many more files updated with improvements for Back Face Culling support. A further 10 parts have been redeveloped by authors who have affirmed the Contributor Agreement, replacing files that were not redistributable.

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Published By cwdee on Jul 05, 2010 - 07:01 AM

Allen Smith has just announced a new version of BrickSmith with faster rendering, new features and bug fixes. Please see the LUGNET discussion for more information or go straight to the BrickSmith website.
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Published By timgould on Jun 14, 2010 - 02:44 AM

The MLCad.ini file has been updated according to the latest LDraw.org Parts Update 2010-01. The .ini file defines (among other things) the parts available in MLCad's and Bricksmith's minifigure generator.

Download the file from: http://www.holly-wood.it/mlcad/ini-en.html

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Published By Holly-Wood on Apr 08, 2010 - 06:41 PM

The 2010-01 LDraw parts update has been now been released.

This update includes 479 files in the core library, including 238 new parts, and many more files updated with improvements for Back Face Culling support. A further 13 parts have been redeveloped by authors who have affirmed the Contributor Agreement, replacing files that were not redistributable.

Scott Wardlaw and the LDraw Standards Committee have also been working on a new revision to the colour configuration file (LDConfig.ldr) and a new version is included in this update. Major updates include the addition of 9 colours that were omitted (including all three Metallic Colours), and the removal of 4 colors that were accidentally added in the last update. Rubber Colours have been given their own section.

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Published By cwdee on Apr 05, 2010 - 08:43 AM

The LDraw Standards Committee (LSC) has just unanimously ratified changes to official colour restrictions and specifications.

This means, that:
* Direct colours, i.e. 0x02RRGGBB colour values, are now officially recognized.
* Blended colours, i.e. the 256-512 range, are now officially recognized, albeit obsolete.

The following spec pages have been updated accordingly:

* LDraw 1.0.0 specs: http://www.ldraw.org/Article218.html
* Official part restrictions specs: http://www.ldraw.org/Article512.html

Michael Heidemann
On behalf of the LDraw.org Standards Committee (LSC)
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Published By mikeheide on Apr 02, 2010 - 01:25 PM

A quick reference to the candidates for the 2010/2011 LDraw.org Steering Committee (SteerCo) election. The information is drawn from posts on LUGNET and corrections are welcome, please email the webmasters.

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Published By timgould on Feb 20, 2010 - 09:45 PM

The LSC has just ratified the LDraw.org Parts numbering scheme for parts with unknown numbers.
It should allow to add parts to the library where the part number is not known. As the systematic that is used up to now has reached its limits this change is necessary.
Please read also the FAQ for LDraw Part Numbers
Michael Heidemann
On behalf of the LDraw.org Standards Committee (LSC)
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Published By mikeheide on Feb 05, 2010 - 10:10 PM

The BBC has just run an article on LEGO including a section on LDraw complete with an interview with our chief librarian Chris Dee. Thanks Chris for doing this and thanks to the BBC for highlighting the world of LDraw.
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Published By timgould on Feb 04, 2010 - 11:53 PM

The LSC has just ratified the LDraw.org Localisation Guideline.
It should be a guideline for implementing localisations for the LDraw System of Tools.

Michael Heidemann
On behalf of the LDraw.org Standards Committee (LSC)
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Published By mikeheide on Jan 06, 2010 - 10:11 PM


Recipient 2009
Tim Courtney

Want to learn more about LDraw? Check out the following books:




What's new in lugnet.cad?

64776 should be re-partitioned
by Joshua Delahunty - 5 days ago

Advanced minifig animations
by Michael Horvath - 5 days ago

Re: Taking shortcuts
by John Neal - 1 week ago

Re: Taking shortcuts
by Ross Crawford - 1 week ago


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LDraw is a completely unofficial, community run free CAD system which represents official parts produced by the LEGO company.