Step-file generation seem to work fine. One question about drill holes. They do not appear to be round holes in the step-file, maybe due to via-copper thickness selected. Is there any tricks for via generation into step file?

By default FAB 3000 will export drilled holes as polygon cutouts (i.e like octagon appearance) for better compatibility with all 3D modeling software.  If you wish to force "arcs" for drilled holes, please check the option during Step Export Options "Output Arcs for Holes" - see link,   https://numericalsoftware-update.s3.amazonaws.com/tutorials/stepexport_arc.png

Note:  If you simply wish to add more sides to the drill holes, than decrease the Arc Precision,  https://support.numericalinnovations.com/support/discussions/topics/14000010293

Thanks again, and we look forward to hearing from you.

Best regards,

Simon

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