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Latest Threads |
80503pb01 lute instrument...
Forum: Part Requests
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Parts we are Working on -...
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Modulex parts
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Same set, different sheet...
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71613/30346c01 too high?!
Forum: Part Requests
Last Post: Chris Böhnke
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5724pr0001 Bubble Canopy ...
Forum: Part Requests
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2025-07-12, 21:08
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Friends 2014
Forum: Official Models
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LDCAD about Add custom p...
Forum: LDraw Editors and Viewers
Last Post: Nate87
2025-07-11, 8:13
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Hi-res logo primitives
Forum: Official File Specifications/Standards
Last Post: Jens Brühl
2025-07-10, 20:40
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Part 5561, Door 1 x 4 x 1...
Forum: Part Requests
Last Post: Gerald Lasser
2025-07-10, 9:55
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PT user accounts and authentication |
Posted by: Orion Pobursky - 2022-12-05, 19:39 - Forum: Parts Tracker Discussion
- Replies (6)
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The PT currently uses the forums to authenticate users. While this currently works well enough, but with the next gen PT in development, we have an opportunity to discuss what we would like to do going forward.
I see 2 viable options:
- Keep the current system with the forums being the controlling account
Pros: Familiarity. Easier to PM authors with questions.
Cons: At the mercy of the developers of the forums to not break things. Rewrites needed if we decide to change software.
- The PT and the forum accounts separate
Pros: Thing only break if we break them. Having an API to tie into is easier.
Cons: More things to sign into. More difficult to tie stuff back to the forums (like the Parts Author badges)
Now that I've pondered and written the above, I think I'm in favor of keeping the forums and PT tied together.
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Precise geometry vs fine-shading topology? |
Posted by: Max Murtazin - 2022-12-03, 20:19 - Forum: Parts Authoring
- Replies (7)
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The topic that is bugging me a bit lately, is what should be really put in priority - precise geometry, or cutting down on that a bit, to have model be shaded way more nicely? Example of that would be the cut cylinder on the 50921. It features cylinder cut by the other one. In the current version, it looks like this:
The thin triangles lead to a pretty unpleasant shading, which essentially keeps edges very clear
It can be fixed by merging some of the vertices, but that results in cylinder not being really circular anymore:
I am not sure which approach is favorable. First result has pretty precise shaping, but loses in appearance. Second one is more fine in how it looks, and precision loss, while present, is not that dramatic
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Matrix math for curved prims |
Posted by: N. W. Perry - 2022-12-01, 19:19 - Forum: Parts Authoring
- No Replies
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Is it possible to get a rotation matrix for a circular primitive, given a simple (I guess quadratic) Bézier curve?
All of our curved prims are circles or conical, and I’ve read that any affine transformation of a conic section will result in another conic section. If the simple Bézier curves are likewise conic (which may be a wrong assumption), then theoretically they can all be represented by a 2D shear matrix, right?
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Parts Tracker bug in release script (non-critical) |
Posted by: Orion Pobursky - 2022-11-30, 4:42 - Forum: Parts Tracker Discussion
- Replies (1)
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I found a bug in the release script of the PT. If the first lines after the header are TEXMAP lines, the !HISTORY line for the release after those TEXMAP metas. I've currently found 6 affected parts in the Official Library:
parts/36069ap01.dat
parts/36069bp01.dat
parts/98088p01.dat
parts/98088p02.dat
parts/98088p03.dat
parts/98088p04.dat
If you find any more, let me know.
Note: This does not affect any visible aspects of the part. The only problem is that the header is out of compliance with the Header Spec.
I'll track the down the source of the bug and recycle the affected parts for the 2022-06 release.
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Brick Sizing |
Posted by: Loren King - 2022-11-28, 10:10 - Forum: Help
- No Replies
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Good morning everyone! I have one question and I haven't been able to find it in the forums. What are the recommended settings for my Creality Ender 3 Pro? I've seen settings on websites that recommend a 1.2mm wall thickness with 4 layers iirc but those bricks don't fit well together without sanding. Any advice would be greatly appreciated on this. Also, thank you to all for having such a fantastic community!
-King04758
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