Parts request + questions :) - Printable Version +- LDraw.org Discussion Forums (https://forums.ldraw.org) +-- Forum: Models and Parts (https://forums.ldraw.org/forum-18.html) +--- Forum: Part Requests (https://forums.ldraw.org/forum-30.html) +--- Thread: Parts request + questions :) (/thread-28618.html)

Parts request + questions :) - Sébastien TURREL - 2025-01-18 Hello LDrawers! Can you provide me these parts please? I couldn't find them in the PT. 27507pb08 27507pb04 87079pb0257 Questions: - Can someone explain the relationship or the logic that I might be missing between some part references in LDraw and their corresponding references in Stud.io/BrickLink? For example, the part 3068bpm2 in the PT seems to correspond to 3068pb2182 in BrickLink/Stud.io. Is it the responsibility of the Stud.io community/admins to align these references? Also, is there any documentation available about part naming in LDraw? I'm a bit confused about this at the moment. - What do the terms BI or BIA (sometimes mentioned in threads) refer to? Thanks in advance! RE: Parts request + questions :) - Rene Rechthaler - 2025-01-18 -Bricklink and LDraw have different naming/numbering rules (most prominent in stickers, but also prints). But most sites have differences somewhere (even Lego itself isnt consistent) -BI/BIA is the BrickInstrucktions(App) where you can view the models being built in 3D, it also can be scraped for the meshes (especially nongeometric ones) RE: Parts request + questions :) - Chris Böhnke - 2025-01-18 For the most part, Stud.io seems to use Bricklink numbering rather than LDraw's. EDIT: Which makes sense, given they are the operators of Stud.io and want to sell bricks on their site. I might have seen a few exceptions though, but it might be the best rule of thumb. Some numbers for older parts might align, because both systems might have had a common precursor, but over the years, every site developed their own system. I guess it's mostly because database updates are different and also certain "needs" are different (LDraw for instance does have unprinted and disassembled parts, whilst other sites might not). The general rules for LDraw part numbers: https://www.ldraw.org/part-number-spec.html Rebrickable is also a good source to comparing the different numbering approaches, they typically list other site's naming on the respective part's page if available. Also keep in mind that the original intent was to keep as close as possible to Lego's own names and numbers. However this turned out problematic, since not all numbers are known and sometimes are contradictions in official material. Some of the common numbers that are "fan-made" (usually 3 digit or starting with an x) date back to the old rec.toys.lego days in the 90s.