Many subfiles could be much more reusable as modular building blocks if they contained some way of fixing the position of some elements. For example the interior/underside of many bricks. 76371s02.dat is a good example. If the hem was removed and the 1 LDU offset of the inside notches could be retained from scaling, this part could be reused for any box height, including the 0.25 scaling factor needed for many parts. What about a command that would fix the position of one end of an element?

0 FREEZE -y end relative to -y boundary
1 16 20 49.5 16 1.5 0 0 0 0 45.5 0 -4 0 box4-1.dat

The above code would result in that the 1 LDU offset (counted from the -y direction) would be retained in all scaled versions of the modular subpart.

Another option would be to define variables and then scale the variables rather than the file.

The 2025-03 LDraw Parts Update has been released. This update adds 733 new files to the core library, including 554 new parts and 36 new primitives.

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 2025-03 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

I made small tool that can be used to get the difference of two LDraw files. This tool was written with the LDraw files exported by Bricklink Studio in mind and does not support references to external submodels. This is the user interface:
   
It has two modes "Partlist" and "Difference Model". An explanation on how to use it and how to install it can be found on the GitHub repo.

Tried to upload a (new) sub-file, got the following error message: 

Parts Tracker File Submit Form
Franklin W. Cain ([email protected]) is not a Parts Tracker registered author

What happened, please?

Let's discuss the orientation of (sloped) Duplo parts.

First of all, sloped Duplo parts have not been oriented as systematically as regular parts. There were some trends (reviewed here https://forums.ldraw.org/thread-28480.html). The existing official parts have several orientations where one major trend seems to be the patterning of a side surface taking precedence over 'slopeness'. This may be partly due to the LDPE editor, where -z is considered the front face of the part and the patterns have been considered the front in common use cases.

Part 11197 is mainly patterned on the side and used in conjunction with part 4198 (https://library.ldraw.org/parts/8177), which is also mainly patterned on the side and oriented in the -z direction.

Therefore, it makes sense to orient part 11197 also in the -z direction.

An alternative would be to rotate all existing sloped parts and their patterns to fit the same convention adopted for sloped regular lego.

Thread for Ideas 2024 sets

102506 Minifigure, Head, Modified Hedgehog (Amy)
102507 Minifigure, Head, Modified Fox (Tails)
102508 Minifigure, Head, Modified Echidna (Knuckles)
104900 Minifigure, Head, Modified Hedgehog (Shadow)
104901 Minifigure, Head, Modified Bat (Rouge)
105029 Minifigure, Head, Modified Hedgehog (Super Sonic)
109630 Minifigure, Head, Modified Hedgehog (Metal Sonic)
3510 Minifigure Costume Tails Fox with White Tips Pattern - Flexible Rubber
3513 Minifigure, Utensil Glove with Spikes
20608 Minifigure Wings Webbed Extended with Neck Bracket

Hi . I'm wondering if there is a parts CDN to be used with the ThreeJS LdrawLoader, (or if I can host one). I know there is some on GitHub, however most of them have not been updated in years, and I can't find an updated one. (gkjohnson/ldraw-parts-library on GitHub is what I found, but as a stated before, has not been updated in 2 years)

Also sorry for posting in off topic, I don't know what category this belongs in other than parts and I'm pretty sure that's for requesting new parts/issues with part models.

Hey, I'm new here and wanted to ask if someone here knows if the part 105005pb01 (Link Hair with Slouchy Hat) is being worked on by someone.
I saw some websites online, that have a 3d version of that part, but I can't find it anywhere.
Does anyone know where I could find it or if someone is working on it (discord maybe?)



([url=https://www.bricklink.com/v2/catalog/catalogitem.page?P=105005pb01&idColor=110#T=S&C=110&O={"color":110,"iconly":0}]https://www.bricklink.com/v2/catalog/catalogitem.page?P=105005pb01&idColor=110#T=S&C=110&O={"color":110,"iconly":0}[/url])

Hello,
I want to take snapshots with LDView. For this purpose, I have saved the required settings in an INI file. The ldr file, the INI file, and the LDView64.exe program are located in the same directory.
The call looks like this: LDView64.exe 157.ldr -IniFile=Settings.ini.
It seems as if the INI file is not being used. A BFC=0 entry in the INI file has no effect. For example, if the call looks like this, the result is as expected: LDView64.exe 157.ldr -BFC=0.
What am I doing wrong?
I am using LDView 4.5 and Windows 10.

Regards

Manfred