Yep - Blend is your friend :) IMHO one of the most powerful and under-utilized functions in MoI.

It also works well for lines and arcs.

In my work I create a lot of curved 2D shapes to use as profiles in Sweep operations. I no longer try to draw radiused corners - I just create my main curves, leaving gaps between them, and use Blend to build the radius corners. It's fast and works great.

Ed