Main thread for Ideas sets released in 2025

Hello,
how do we handle stickers with identical design, but with different sheet numbers?

This is the case with:
Sticker  1.8 x  1.8 Chequered
and
Red "PORSCHE" on Black Background Sticker

For the first we have a lot of alias of the original part 6142617z: 6141875d, 6142271p, 6148328a, 6221655aj, 617973o and 6221805ah.
Some official, others in the process of being approved.
Each file shows the name of a different sheet and the keywords that refer to the set.
This seems correct to me, otherwise the reference to the single sheet is lost. If I look at the list of stickers on a sheet, it seems that some are missing.
it's a bit like the symmetrical stickers of the same sheet. Both are saved, even if it would be enough to mirror them when drawing the assembly set.


For the second we have two sets (flat sticker, formed sticker and part with sticker applied): 6221655i and 18972dy3, 6097428ao and 18972dy5.
At the moment they are copies and not aliases but it will be remedied soon.



The questions are:
 - Do we keep aliases even for shortcuts even if they appear identical? Or can 18972dy5 be deleted and can its keywords be moved to 18972dy3?
 - Do we continue to make the aliases of the parts or do we add the keywords in a single reference part? And, for each new set that uses this part, should we modify the single official part to add the keywords to the new set.

(2025-07-30, 15:25)Orion Pobursky Wrote: We also need to address if/how we want to name non-square/rectangular sticker backs if creation is desired.

The brick runners (e.g.  31202c04) are assemblies consisting of one base, four wheels, and two axles.

The base has 31202 embossed onto it and 5436 printed with black ink.
Each wheel has 31204 embossed on it.
The metal axles have no visible part numbers.

What is the part number for the chassis/base to be used in LDraw?
What is the assembly number to be used in LDRaw?
Shall the c01... follow the same logic as in BrickLink?
What u number can I use for the metal axles and which color would I make it?

Is there any special way to mark these parts as members of assemblies/shortcuts so that they do not get used outside any assembly?

I'd like to ressurect this discussion:
https://forums.ldraw.org/thread-28281-post-54224.html

To recap, the current practice is as follows:
- The part and the sticker should be color 16
- If the part is an assembly of a color 16 part and a transparent part and the sticker is placed on the transparent area:
  - For a solid color sticker, the color will be the color of the sticker back (usually white)
  - For a transparent sticker, the color will be Trans_Sticker

I'm advocating that all stickers in a sticker shortcut should be hard coded the color that they actually are.

In fact, I'm also leaning towards the notion that all sticker colors should be hard coded in the sticker itself (i.e. no color 16 boxes but white, clear, sliver, etc.). This would clear up a lot of problems but not sure we need to go that far.

No matter which part I click on in the Parts List I get the "500 | SERVER ERROR" message.  But was able to download the part file.

LDConfig made from the one in the LDraw.org 2025-07 Parts Update.
This is a LDConfig file that includes the "Render Only" colours from Bricklink Studio.
(Without LUMINANCE values, I might change that in future updates)

To use it do the following:

1. Download it:
     LDConfig_plus_bl_studio_colours.ldr (Size: 55.49 KB / Downloads: 6)
   
2. Move it to your LDraw folder
   
3. Rename "LDConfig.ldr" to LDConfig_default.ldr(or something else)
   
4. Rename "LDConfig_plus_bl_studio_colours.ldr" to "LDConfig.ldr"
   

The 2025-07 LDraw Parts Update has been released. This update adds 448 new files to the core library, including 263 new parts and 6 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 2025-07 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

Hi,

I am trying to create a phone app, and my goal is to show each step of my design (with LDCad) on the phone app the same way as shown in LDCad. I met a problem when implementing the behavior when a step rotating on Z.

Below is a step having no rotation:


But when I just rotate it around Z for 30 degrees, it is rendered like this:


From what I see, it is more like rotating on Y and X for some reason. But if I open the same step in LPub3D, the render is expected as below:



Could anyone help me to understand what is the logic behind this in LDCad? Or can it just be a bug?

Thanks!

The Duplo cannons are composed of multiple physical pieces screwed together. Looking specifically on the cannon with locking ring and red button 17178c01 or 94886c01.

What is the minimum that need to be modeled?

Some motors, projectile launchers, and springs have been modeled down to each screw and separable part even if that has meant the creation of (sub)parts with u numbers. Obtaining subpart numbers and internal structure requires opening the assembly, possibly destroying its play-ability in the process.

Rubber insets are sometimes modeled only by their visible parts.

Can the firing button be modeled as a red surface or does it need to be a separate subpart?

How accurately does the internal structure (metal spring and projectile guides) need to be modeled?

Do the screws need to be modeled as separate parts?