Printing in paper space : strange lines

Hi there,

Somebody could explain me why Rhino is doing that to my PDF ? I can’t understand why it does strange lines when I export, and I’d like to know how I am suppose to scale the lines from rhino model space to paper space ? Cause, I obviously have a linetype problem scale here. I can’t seem to find any resources about it unfortunately.

PDF :

In the model space :

Best regards,
David

ALso when I zoom in a little from PDF :

Hi David - yep - Technical (& Pen & Artistic) hidden lines are pixel based, there is currently not much you can do about that - use Make2D to get more useful line types for printing.

-Pascal