Print Display, no change up to 0.5mm

[Tom_P]

similar but un-solved problem here:

Pdf via export, line width below 0.25mm / 0.7 pt?

Dear Pascal - many thanks - did you try the file i provided at the inital post ? even if i stay within the rhino-world before exporting the pdf: [Screenshot 2021-11-03 at 21.19.02] reopen the exported pdf in rhino [Screenshot 2021-11-03 at 21.20.21] this is the same that i get in affinity designer and illustrator ;-( kind regards -tom