LDraw.org Discussion Forums

Hi all,

I think I found some duplicate triangles and quads in some part files. Here are the ones I've managed to identify so far:

- Line 84 in 18922.dat
- Line 26 in 99781.dat
- Line 17 in 2630k02.dat

From what I can tell, removing these lines should have no effect on the geometry other than removing the duplicate faces.

I’m new to LDraw, so please let me know if I’m overlooking any conventions or reasons these might be intentional.

Thanks!

Welcome to LDraw. I checked 18922 and indeed lines 84 and 85 are superfluous. You can now edit the file, add a HISTORY line describing the correction, and upload the corrected file to the Parts Tracker. When uploading, make sure to check the 'official file fix' check box.

(2025-07-22, 1:29)Alan Zhu Wrote: [ -> ]I think I found some duplicate triangles and quads in some part files. Here are the ones I've managed to identify so far:

- Line 84 in 18922.dat

Thanks for reporting. This has been corrected:

https://library.ldraw.org/parts/47158

w.

(2025-07-22, 1:29)Alan Zhu Wrote: [ -> ]- Line 26 in 99781.dat

This has been fixed as well.

https://library.ldraw.org/parts/47206

w.

(2025-07-22, 1:29)Alan Zhu Wrote: [ -> ]- Line 17 in 2630k02.dat

And the last one:

https://library.ldraw.org/parts/47223

w.