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LDraw.org 2025-05 Parts Update Now Available |
Posted by: Orion Pobursky - 2025-05-28, 3:57 - Forum: LDraw.org Announcements
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The 2025-05 LDraw Parts Update has been released. This update adds 372 new files to the core library, including 219 new parts and 27 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 2025-05 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
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Declaring multiple rotational points |
Posted by: Peter Blomberg - 2025-05-25, 0:27 - Forum: Official File Specifications/Standards
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Is there a way to declare more than one rotational point? Usually, the point of origin is selected such that it is optimal for rotating a part around its rotational axis/hinge. However, many parts have more than one rotational point. What about adding a HELP or creating a new metacommand specifically for declaring rotational points, however many there may be in a part?
PS. This comes close to declaring clip snapping points, but that is a slightly different story.
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Duplo parts with hinge AND rotation snap |
Posted by: Peter Blomberg - 2025-05-25, 0:20 - Forum: Parts Tracker Discussion
- Replies (10)
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Official part 13358 Duplo Brick 2 x 2 Hinge Base
Unofficial part 13355 Duplo Plate 2 x 2 with Hinge Extended on Side
Unofficial part 25548 Duplo Plate 4 x 4 with Hinge Extended on Side
These parts have both a hinge and a rotational snap. Part 13358 has its origin at the top of the snapping hole, i.e. not at the center of the hinge.
Similarly, a large number of hinges have their origin at the centre of the topmost stud group and not at the hinge. E.g. 92582, 3640, 60471, 44568, 3597, and 30383. These are not following the current requirement of having the point of origin at the centre of the hinge.
Understandably, an origin at a hinge makes placement and rotation around that hinge easier. However, the three parts under scrutiny also have an another rotational axis. The question is now; which rotational axis is primary and which secondary for these three parts? The build order is AFAIK exclusively so that the rotational snap comes first (even if not used) and only then are parts added to the hinge.
What happens in the editor if hinge counterparts have different origin? Can the second part with origin at the hinge still be placed nicely? What about placing the first part if the origin is offset on the side at a different elevation than the studs/antistuds?
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