The 2026-04 LDraw Parts Update has been released. This update adds 188 new files to the core library, including 99 new parts and 8 new primitives. As of this update, the LDraw.org Parts Library contains 16739 unique shapes or patterned parts.

Thanks are due to all the part authors who created or corrected parts for this release. The small, but dedicated, band of reviewers also play an important role in keeping files moving through the Parts Tracker and deserve just as much credit. This update wouldn't have been possible without their dedication and attention to detail.

You can preview the new parts in 2026-04 here, and download the zip-file update or Windows install package here.

Thank you to all the testers and parts authors who continue giving feedback on the PT software. This project would not be what it is without your help.

Orion Pobursky
Magnus Forsberg
Gerald Lasser
LDraw.org Parts Library Admins

Thread for the 2001 Dinosaurs theme.

Dinosaurs was a small theme made of 12 sets (actually just 8), none of which had a large piece count. It used a new system to build larger animals, which was reused in Orient Expedition, Alpha Team and Star Wars to make elephants or dewbacks for example.

The 4 larger sets came in box-shaped canisters similar to early Bionicle sets. The lids could be used as display bases, while the back of the instruction posters could be used as connectable playmats. Each set could be build into 4 different dinosaurs.

The 4 smaller sets came in both boxed and polybag variants, each with a different set number.

I have a project going that involves the baby dinosaurs from the 2001 LEGO Dinosaurs theme, and the only part missing from each of those sets is x158/40384 Dinosaur Head Small/Dino Head 4x2x2. I have tried extracting the assets file myself with the recommended LIFExtractor to no success, and the Digital Bricks .dat download, which I tried before going to all that trouble, only gave the connectivity info. I'm basically at wit's end here, so if anybody with more technical knowledge and the appropriate software and equipment can get the part into LDraw, that would be really appreciated, thanks.

Additionally, the printed parts from the canister sets are not yet available, either, nor are the canister lids, so those would be nice, too.

(2026-04-22, 20:27)Orion Pobursky Wrote: It's time to start discussing the LDraw.org Official Parts Library Standards.

Quote:Leading zeros unless immediately before the decimal point must be removed (i.e. 1.5, not 01.5).

Quote:Leading zeros unless at most one immediately before the decimal point must be removed (i.e. 1.5, not 01.5).

It's time to start discussing the LDraw.org Official Parts Library Standards.


I'll kick this off with 2 items:

1. Is the title "LDraw.org Official Parts Library Standards" a good title? Should we use something better?
2. Review the "Introduction" section and provide feedback.

https://library.ldraw.org/documentation/...troduction

Desired feedback includes, but is not limited to:
 - Content
 - Grammar
 - Page format
 - Page styling (i.e. the overall look and feel)
 - Page navigation

Hi,

I'd like to request parts for the Alien Tourist from CMF Series 26 Space. It's a fun figure and I'd love to use it in LDCad/Studio, but none of its parts seem to be in the library yet

The figure has parts that would need to be added:

1. Head: https://www.bricklink.com/v2/catalog/cat...T=S&C=86&O

2. Torso: https://www.bricklink.com/v2/catalog/cat...=3#T=I&C=3

3. hat: https://www.bricklink.com/v2/catalog/cat...9#T=C&C=39

Thanks a lot to anyone who picks this up — I know it's a lot of work and it's all done voluntarily, so it's really appreciated!

Hello everyone!

To complete my Set 42228 project, I am still missing

... the PRINTED tyres ‘Tyre 81.6 x 44 Slick with White “PIRELLI”, “P ZERO” print’
    (available as a raw mesh file (8266_raw.dat), unfortunately no decent photo found) and

... the PRINTED wheel covers ‘Wheel Cover for Wheel 34 x 56 with Green/Yellow/Red/Blue Circle print’,
    based on Part 4472.dat.
    Image: https://brickonomics.net/sa/element/99536

Thanks in advance and best regards,

Alfred

Hey,

there was a little bug regarding the scientific number replacement. The last number was not modified. Thanks to Willy for reporting this.

Download and install the latest LDPatternCreator release directly from sourceforge.net.
Any previous version should be uninstalled first. Your program configuration will be preserved.

Change log:

Fixed bug:

• The scientific number notation was not replaced on the last number of a text line (e.g. with a triangle '3 4 ... 1e-015').
  

Hey,

with this update I improved the *.dat-file export by replacing scientific numbers with their decimal counterpart.
It will also replace values like 1.2e-8 with 0.

Download and install the latest LDPatternCreator release directly from sourceforge.net.
Any previous version should be uninstalled first. Your program configuration will be preserved.

Change log:

New features:

• The dat-file export replaces now scientific number notations in exported files.
  
• Set the snap via toolbar buttons (for 1, 10, 100, 1000).
  
• Remove isolated vertices from a selection.
  

Hi all! New here. I come on a mission on behalf of a fellow enthusiast.

Friend and I are remaking LEGO Loco and we wanted to put the 4559 train in it, since the game's promo materials include it.

I noticed on a Stack Overflow post that one Iván Sánchez had recreated this model in LeoCAD, so I reached out to him to ask for it so that I could render sprites with it. He very kindly sent it over and also asked if I'd care to get it submitted to the OMR. So here I am.

I've attached the current state of the model. I modified it a bit to make sure it included all the listed parts. What's next? 

Thanks everyone!


  4559 - Cargo Railway.mpd (Size: 45.58 KB / Downloads: 1)