Thicken curve

Hi,


I’m new to Rhino and I have some problems with thickening/extruding the line.
What is the easiest way to thicken the line below by the same value along its entire length (I want the line to be 1.5mm thicker on the outside and 1.5mm thicker on the inside?
I’ve been using an extrusion ball, but it extrudes in the XYZ axis, not just adds thickness along the entire length.
I would appreciate your help.

Thanks!

Hej Agnieszka -

It sounds like you want to use the Offset command.
Note, that with 1.5 mm, you’ll run into trouble with that one curve…
image

-wim

or Ribbon command in case of surface creation