Olimex export/import problem - FR4 color error while exporting

[goran-mahovlic]

Hi, it is me again.

I am trying to get Olimex board exported to pcb3d, and getting this error

This error can be fixed with removing FR4 color in stack up settings.

If I remove FR4 color, and try to import pcb3d into blender, blender 4.2 just closes ( I have just 16GB of RAM so maybe that is reason. )

Could you please check?

Olimex board is here:

https://github.com/OLIMEX/GateMateA1-EVB/tree/main/HARDWARE/GateMateA1-EVB-Rev.B

[30350n]

Related to #68.

This error can be fixed with removing FR4 color in stack up settings.

Yeah, either do that or actually specify colors for the top/bottom Mask and Silkscreen layers as a workaround.

If I remove FR4 color, and try to import pcb3d into blender, blender 4.2 just closes ( I have just 16GB of RAM so maybe that is reason. )

Could you please check?

Can you share the .pcb3d file? If you suspect it's the complexity of the file (which seems reasonable), you can also try importing without components in Blender. My best guess is that this (similarily to #85 is being caused by overly detailed custom 3d models.

[goran-mahovlic]

I was able to import into blender 4.2 with removing merge materials 4.3 still exits in my case.

I also imported all other extensions and it is looking really nice!

Here is pcb3d file

https://wetransfer.com/downloads/87992c457ec0f959484bf94a4ec7be4320241213170022/9fa09825661f3bfb0734f2ca2518302220241213170048/482852?t_exp=1734368422&t_lsid=d4a4e590-9990-4b24-a934-0f45352e9b8c&t_network=email&t_rid=ZW1haWx8Njc1YzY4MjZkODI3Zjg0MWYyMzU0MThj&t_s=download_link&t_ts=1734109248&utm_campaign=TRN_TDL_01&utm_source=sendgrid&utm_medium=email&trk=TRN_TDL_01

[30350n]

Very nice render you created there!

I am able to reproduce the crash. Seems to be caused by Blender's boolean code.

So the Merge Materials setting isn't the caveat here, but the Cut PCBs one is. Disabling it makes the import pass.
You can also just not define the board outlines, if your KiCAD PCB file only contains a single board:

[30350n]

(The exporter issue will be fixed in the next release).

[goran-mahovlic]

Perfect! Thank you!