Brick texture problems

[BobV-K]

I'm having very mixed results with applying brick texture to simple box shapes. The shapes are all 7mm high, but vary in width and length. The texture is applied to the top surface and all sides. Some shapes export without errors, some with errors (non-manifold etc) that I managed to fix by running them through an online repair tool. But one (125mmx150mmx7mm) refuses to be fixed at all. I'm very new to 3D modelling, so any advice would be very much appreciated.

[henmedia]

@BobV-K thank you for the detailed description. The surface texture comes from @marcus040473, could you please have a look at this? If you can, please send a bug report from the editor for the 125×150×7 mm box, that shows what goes wrong. If you'd like to support the project, a small donation is very welcome.

[BobV-K]

Many thanks Stefan. I’ll contact to the editor with the parameters I have used. All the best Bob PS. You’ve built a great application! Much easier to use than Tinkercad.

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On 3 Nov 2026, at 9:41 am, Stefan ***@***.***> wrote: @BobV-K <https://github.com/BobV-K> thank you for the detailed description. The surface texture comes from @marcus040473 <https://github.com/marcus040473>, could you please have a look at this? If you can, please send a bug report from the editor for the 125×150×7 mm box, that shows what goes wrong. If you'd like to support the project, a small donation <https://layerling.com/support.html> is very welcome. — Reply to this email directly, view it on GitHub <#1204?email_source=notifications&email_token=CT3NWCGZEYOYPEBZXAHZTBT5XELRTA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCOJTGYZDMNZRUZZGKYLTN5XKO3LFNZ2GS33OUVSXMZLOOSWGM33PORSXEX3DNRUWG2Y#discussioncomment-19362671>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/CT3NWCFNTRFJ37VQAMDYKQD5XELRTAVCNFSNUABJKJSXA33TNF2G64TZHMYTGNZTGY3DAMZRGI5UI2LTMN2XG43JN5XDWMJRGIYTCNBTGCQXMAQ>. Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS <https://github.com/notifications/mobile/ios/CT3NWCAFYT46QZN2EJWCC435XELRTA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCOJTGYZDMNZRUZZGKYLTN5XKO3LFNZ2GS33OUVSXMZLOOSVGM33PORSXEX3JN5ZQ> and Android <https://github.com/notifications/mobile/android/CT3NWCBT4RIGO3J4QP5GCKT5XELRTA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCOJTGYZDMNZRUZZGKYLTN5XKO3LFNZ2GS33OUVSXMZLOOSXGM33PORSXEX3BNZSHE33JMQ>. Download it today! You are receiving this because you were mentioned.

[marcus040473]

@BobV-K thanks for the clear description – it wasn't anything you did. I could reproduce it: with bricks on the top and the sides, some sizes of a 7 mm box came out with open and non-manifold edges (150 × 125 mm, for example, with 40 open edges), others were fine. It depended on where the brick joints happened to fall.

The cause was in how the brick joints were cut: course by course, which left very long, very thin triangles across the sides, and cutting the next course tore the mesh there. Now all courses are cut in one go. I checked 140 flat boxes (different sizes, all five bonds, the top alone and with the sides): before, 16 came out broken, now none. Your 125 × 150 × 7 mm box exports clean either way round.

The fix is in my preview already, so you can make your box there and export it: https://marcus040473.github.io/?editor=1

@henmedia here is the pull request for it: (#1215)

If a box still gives you trouble, please tell me its size and your brick settings (spacing, brick height, joint, bond), and I'll look again.

[BobV-K]

Good grief! What an excellent response! Thank you very much for your support I very much appreciate it. At the ripe old age of 71, this stuff is a steep learning curve. I’ll get there, but it just takes longer. 😊 Once again, thank you very much for your help. All the best Bob

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On 3 Nov 2026, at 5:33 pm, marcus040473 ***@***.***> wrote: @BobV-K <https://github.com/BobV-K> thanks for the clear description – it wasn't anything you did. I could reproduce it: with bricks on the top and the sides, some sizes of a 7 mm box came out with open and non-manifold edges (150 × 125 mm, for example, with 40 open edges), others were fine. It depended on where the brick joints happened to fall. The cause was in how the brick joints were cut: course by course, which left very long, very thin triangles across the sides, and cutting the next course tore the mesh there. Now all courses are cut in one go. I checked 140 flat boxes (different sizes, all five bonds, the top alone and with the sides): before, 16 came out broken, now none. Your 125 × 150 × 7 mm box exports clean either way round. The fix is in my preview already, so you can make your box there and export it: https://marcus040473.github.io/?editor=1 @henmedia <https://github.com/henmedia> here is the pull request for it: [PR-LINK] If a box still gives you trouble, please tell me its size and your brick settings (spacing, brick height, joint, bond), and I'll look again. — Reply to this email directly, view it on GitHub <#1204?email_source=notifications&email_token=CT3NWCBBK4RWKBLWT65SSNT5XGC6DA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCOJTGY4DOOBQUZZGKYLTN5XKO3LFNZ2GS33OUVSXMZLOOSWGM33PORSXEX3DNRUWG2Y#discussioncomment-19368780>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/CT3NWCFZ7UNQUASNDLCEU6D5XGC6DAVCNFSNUABJKJSXA33TNF2G64TZHMYTGNZTGY3DAMZRGI5UI2LTMN2XG43JN5XDWMJRGIYTCNBTGCQXMAQ>. Triage notifications, keep track of coding agent tasks and review pull requests on the go with GitHub Mobile for iOS <https://github.com/notifications/mobile/ios/CT3NWCHWGDBLYBYYPVZUFSD5XGC6DA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCOJTGY4DOOBQUZZGKYLTN5XKO3LFNZ2GS33OUVSXMZLOOSVGM33PORSXEX3JN5ZQ> and Android <https://github.com/notifications/mobile/android/CT3NWCDVS2E6BKHTUVRNHF35XGC6DA5CNFSNUABIM5UWIORPF5TWS5BNNB2WEL2ENFZWG5LTONUW63SDN5WW2ZLOOQXTCOJTGY4DOOBQUZZGKYLTN5XKO3LFNZ2GS33OUVSXMZLOOSXGM33PORSXEX3BNZSHE33JMQ>. Download it today! You are receiving this because you were mentioned.