3D View is fine, but when I tried to export the pcb to STEP, I got this warning message
Warning: Exception code=0xc0000005 flags=0x0 at 0x0000000066E952DA. Access violation - attempting to write data at address 0x0000000000000020
Does anyone know what this means?
You should give more detailed information about your KiCad version (About->Copy Version Info) and the underlying system.
Not that it would help much - the message is so generic that it’s difficult to say where it comes from. My guess is the export function which uses a 3rd party library to do its job.
If exporting from KiCad doesn’t work you can install FreeCAD and kicadStepUp workbench and open the board from FreeCAD, then export from there to any supported format.
Thanks. I use FreeCAD-pcb to open the file. It still has problems. I redraw the board outline again and this time I can export the step file with no problem. I would expect if 3D View is fine, export will be fine too. Probably, like you said, Kicad uses a 3rd party library to do this job.
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