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  Leotard hips (awkwardly hacking dat-files)
Posted by: Jeroen Hoek - 2025-09-25, 17:47 - Forum: Parts Authoring - Replies (5)

For a MOC I am working on I have two minifig part variants which seem to be missing:


In the LDraw parts database I noticed that this hips-with-leotard variant does exist:

So I figured I'd have a look to see if I can't just hack that one a bit with a text editor, and that actually worked:

[Image: Screenshot-from-2025-09-25-19-15-58.png]

What I did was remove foot front along with the coloured toes, and repair the hole with a yellow quad.

I made yellow a fixed colour, but used the variable 16 colour code for the leotard. This means that this will work for four plain leotard hips, as far as I can see:

There are more leotard bottoms, but those all seem to have additional details like spots or socks which is beyond my current skill level with LDraw files.

I've created dat-files for these four based on the Tinkerbell original by Evert-Jan Boer (@ejboer). Is someone willing to have a look at what I've made to see if these can be contributed back to LDraw? I'm a little out of my depth here with regards to the process and the required metadata for the files.

I've uploaded the files with their dependencies here. The files prefixed with jh in the parts-folder were added by me, the rest came along with the download for parts/73200bp01.dat. I've used the Bricklink ids to name those new files for now. Two other files are copies of the Tinkerbell pants, with the names kept the same except for the prefix.

For the second one — the torso variant — I am willing to draw that back and front and see I if I can get that working, but on the LDraw website I am missing something like a tutorial which outlines how you can get from a drawing to a working LDraw file. Am I right in assuming that it basically comes down to using flat coloured triangles and quads to approximate the decorations on any surface?

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  3573, 7249, and 3572
Posted by: Peter Blomberg - 2025-09-24, 2:38 - Forum: Parts Tracker Discussion - Replies (12)

The arch 3572 may possible match the curvatures of the sloped bricks 3573, 7249, 50950, and 24309.
We need to confirm these matches using physical parts.

Does anyone have two or more of these parts?

A. Does the curvature of 3573/7249 match the curvature of 50950/24309?
B. Does the curvature of 3573/7249 match the curvature of 3572?
C. Does the curvature of 50950/24309 match the curvature of 3572?

I know what BI data claims, but now we need physical confirmation.

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  Plate Special Round 4 x 4 with Melting Drops on Sides (Part 65702)
Posted by: tom alphin - 2025-09-23, 5:41 - Forum: Part Requests - Replies (3)

Plate Special Round 4 x 4 with Melting Drops on Sides (Part 65702) - It features prominently on the feet of #40806 Gingerbread AT-AT Walker.

Related part 65700 is already available.

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  Reasons for hold
Posted by: Peter Blomberg - 2025-09-22, 23:38 - Forum: Help - Replies (9)

Where is the official list of reasons for hold-voting a part?

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  Toucan 80513
Posted by: Peter Blomberg - 2025-09-22, 21:00 - Forum: Parts Tracker Discussion - Replies (2)

Some of the border vertices in the toucan subfiles have slightly different rounding of the fourth decimal, which causes white dots to appear along the seams between subparts. The shape is free-form so there is no primitive that would cause it. It can be hard to detect, but it seems reviewers have anyway certified it.

What is the current policy? Are fourth decimal gaps allowed or not?

If allowed, what is the largest gap that can be accepted in a free-form shape?

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  filter for inactive authors
Posted by: Peter Blomberg - 2025-09-22, 9:34 - Forum: Parts Tracker Discussion - Replies (1)

Is there a way to search for parts/subparts that have had a hold vote for more than 3 months?

Can the results be filtered to include only such part authors that haven't logged on in the last 3 months?

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  2025 LEGO Education Science - 115901 (Remote Control, Science)
Posted by: tom alphin - 2025-09-21, 6:13 - Forum: Part Requests - Replies (4)

In recent days, Philippe Hurbain has added three of the four new Bluetooth-based LEGO Science parts to the parts Tracker.  I'm personally excited to see LEGO finally moving to USB-C for charging their devices, as well as curious to see how well the device-to-device Bluetooth connectivity works in practice.

Assuming that these devices continue to connect with Host PC and with each other using the LEGO Wireless Protocol - it might be possible to control them using a Spike Hub, or even a City hub running PyBrick firmware.  (If anyone has any info on the protocols used or compatibility with other Powered Up hubs, let me know)

In any event, one of the parts is still not on the tracker, and I would like to include all four of the new parts in my LEGO Parts Guide.  (I believeive the guide will be especially useful to educators.)

Missing Part: 115901 (Remote Control, Science)


Thanks again for the tremendous throughput of new parts in recent months!
---tom

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  30mm vs 30.4mm Wheels & Tires
Posted by: tom alphin - 2025-09-21, 4:51 - Forum: General LDraw.org Discussion - Replies (8)

There are a number of wheels with an outer diameter of around 30mm, but they are very inconsistently described as 30mm or 30.4mm across different websites.  I noticed that LDraw is the most consistent here, using 30 (mm) for all four of these parts.  (Within MLCad they appear to be exactly the same width.)

1. Are they actually the same size, or are they actually measurably different?
2. Even if they are ever-so-slightly different, is 0.4mm so small that almost nobody cares?
3. Does LDraw prefer technically accurate measurements, or is it generally preferred to nudge measurements ever-so-slightly to make the system work better together?

I would like to make my part naming both technically correct and consistent.
---Tom

LINK TO RELEVANT PARTS: https://brickarchitect.com/parts/categor...artstyle=1

P.S. Here are dumps of the part names across the relevant sites:

56904 (14mm wide)

  • Brick Architect Long: 30mm D. × 14mm Wheel w/ Technic Axle Hole
  • Brick Architect Short: 30mm D. × 14mm, Axle
  • Bricklink: Wheel 30mm D. x 14mm
  • Rebrickable: Wheel 30 x 14
  • Brickset / LEGO.com: RIM NARROW Ø 30/14 W/ CROSS
  • LDraw: Wheel Rim 14 x 30 with 6 Spokes and No Pegholes

42716 (20mm wide)
  • Brick Architect Long: 30.4mm D. × 20mm Wheel w/ Technic Axle Hole, 5-Angled Spokes
  • Brick Architect Short: 30.4mm D. × 20mm, Axle, 5-Spokes
  • Bricklink: Wheel 30.4mm D. x 20mm with No Pin Holes and 5 Large Spokes
  • Rebrickable: Wheel 30 x 20 5-Spoke
  • Brickset / LEGO.com: RIM WIDE DIA.30X20 W/ CROSS HOLE, NO. 1
  • LDraw: Wheel Rim 20 x 30 "Torq Thrust" with 5 Spokes and External Ribs

66155
  • Brick Architect Long: 30.4mm D. × 20mm Wheel w/ Technic Axle Hole, Angled Spokes
  • Brick Architect Short: 30.4mm D. × 20mm, Axle
  • Bricklink: Wheel 30.4mm D. x 20mm with Center Axle Holes Motorcycle
  • Rebrickable: Wheel 30 x 20 with Center Axle Holes
  • Brickset / LEGO.com: RIM, WIDE, DIA. 30X20, W/ CROSS HOLE
  • LDraw: Wheel Rim 30 x 20 with 3 Dual Angled Spokes and 4L Hub

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  2003 Pattern
Posted by: Lisa Winter - 2025-09-20, 9:37 - Forum: Parts Authoring - Replies (2)

Hi,

Does anyone have a good photo of these two drawings?


.png   2003pb02.png (Size: 324.38 KB / Downloads: 56)
.png   63896.png (Size: 408.19 KB / Downloads: 56)

Kind regards,

Lisa

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  reviewing obsoleted parts
Posted by: Peter Blomberg - 2025-09-20, 1:02 - Forum: Parts Tracker Discussion - Replies (2)

Can anyone point me to the specifications/rules for obsoleted parts? (It might be easy pickings to get off the tracker...)

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