even tho i am parts author i can not submit when i go the page for submiting it says 403 This action is unauthorized.
have i been banned?, parts author taken away from me?

The 2025-04 LDraw Parts Update has been released. This update adds 189 new files to the core library, including 129 new parts and 10 new primitives.

I will note that there are about 7700 parts in this update that have had some minor edits to KEYWORDS, CATEGORY, or LICENSE.

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 2025-04 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
LDraw.org Parts Library Admin

Warning to all viewing thread - this project is in beta - lots of issues and bugs everywhere.

Hi all. I recently started working on a ThreeJS/LdrawLoader based webapp after putting it off for some time. It's called Gr8brik. It's exactly what it sounds like.
I have to admit that I've only been doing ThreeJS for less than a year, same with LdrawLoader. I discovered Ldraw three years ago - and since I've liked it. I've also liked things like Mecabricks, which is why I've decided to "combine" the two in a way - all I can say is making this has been fun.

Note there is loads and loads of bugs, and I plan to rewrite multiple things. Also this isn't a complete alternative to things that already exist, ofc Bricklink Studio is going to be better than this.

Also - you're free to look at the source code - just be aware it's very messy and uses some hacks to get things working.

http://www.gr8brik.rf.gd

1 16 -29.3636 0 95.0925 74 0 0 0 1 0 0 0 -85 48\1-8edge.dat

Considering the above curve, it starts from right and proceeds clockwise 6 out of 48 segments. The x and z radiuses are different.
How do I obtain a curve with segments 2 to 6, i.e. without segment 1?

Rotating the above by one 16th rotates also the ovoid, not just the "selection".

Part 5649 from 2024 is now in 6 sets including the new T-rex and LOTR Shire sets, so it would be nice if it could be added please.

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

Rebrickable has pics of the underside of it if needed in the more photos section:
https://rebrickable.com/parts/5649/brick...-flat-top/

It is also probably in the lego builder app I would imagine.

Thread for Technic sets released in 2025

I made the attached draft, but it shows my limits in making an accurate model of all the curvature on this part. It has far too many flat surfaces. The real part is much more round on the cushion part. I inlined subfiles. The current draft uses the s\65109s01.dat subfile for the underside, but it is rather different from the real part. Is this draft worth the dust bin or can you suggest how to improve it?


  test_65110.dat (Size: 128.78 KB / Downloads: 1)
   

A general reminder that all official part fixes on the PT are fair game for anyone to edit. There is no exclusivity like new parts.

Also, unless it's a complete rewrite that follows the rules of rewrites, the Author: line must remain the same. 

All existing history is also to remain the same and unaltered without explanation.

Hello,

In response to a comment in the Parts Tracker requesting the Bricklink reference, I received a response that the remaining references would be added automatically.
My questions now are: Are only the links added to the Parts Tracker, or are they also entered in the keywords?
If I publish a part with pattern, should it only have the Rebrickable reference?
If I also add the Bricklink reference, will it be overwritten?

Regards

Manfred

Just wanted to ask if anyone else has noticed that the events on my submits feature appears to be malfunctioning. It doesn't update.