At first, I thought it was a helix, then maybe a half helix. It seems the shape is something not quite anything mathematical.
Is the mesh available from BI?

https://www.bricklink.com/v2/catalog/cat...P=54073px1

The part has a rectangular indentation on the handle. The injection point is on that rectangular area. Should the rectangular are be modeled or is it part of the injection point?

One end of the handle is intended to fit inside a hollow stud7. Is there a prim for it?

The LDraw.org main page shows "Parts Update 2025-07" instead of the 08 for the most recent package. The number of parts included appears correct.

LDConfig made from the one in the LDraw.org 2025-08 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: 68.61 KB / Downloads: 4)
   
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"
   

Are s00 allowed for non-assembly parts as a regular subpart? I thought subpart numbering starts from 01.

The 2025-08 LDraw Parts Update has been released. This update adds 964 new files to the core library, including 532 new parts and 57 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.

This update finally releases the train track switches which have been on the tracker since 2009! It also contains the first batch of Modulex parts.

You can preview the new parts in 2025-08 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

I'll be at BrickCon in the Seattle area from 4-7 Sep. If you're attending come find me and we can chat. I'm also giving a presentation on Sep 7 at 3 pm. 

P.S. We can still chat if you come as a member of the public, but please let me know when you'll be there as I usually hang out in the non-public areas during public hours.

Orion

Would it be worthwhile to create a vote/mark in addition to "hold" for the purpose of highlighting imperfections that are not ground for a hold?

A reviewer could use it to mark parts that they have processed and found wanting, to prevent it from appearing on self-made todo-lists. A kind of "hide this part" from me until changes have been made to it.

I see two possible uses of such an in-between vote:

1. "Hide this part - I don't want to review it."
   
2. "Signal the author that the part could be improved, yet leaving other reviewers the possibility to certify the part without any changes."
   

How can I search for my (sub)parts that contain rect-primitives on the tracker?

I would like to have part 5188 please

I've been struggling with getting parts 2677 and 2678 to work together (and with other monorail parts) in Stud.IO for a couple of days now, and after thinking something might be wrong with them, I eventually discovered something wrong with part 2772c01 (Monorail Track Monoswitch (2772c02 / 2774)) instead. After examining this part closely in PartDesigner, I realized that the anti-studs at the bottom are actually misaligned. It turns out that part 2774 is sitting slightly too high above part 2772c02 in that assembly. This means that any monorail that includes the Monoswitch is bound to be misaligned, even if all connections along the monorail are perfect.

I can produce a corrected 2772c01, but it's probably better if someone else does it who has more experience with .dat files and can ensure that the resulting part would be perfectly aligned.