How to draw a true radius arch?

[rww]

Is there any way to draw a true radius arch in partworks? I am trying to cut arched faceframe pieces for bookcases in the top left corner of my table. I tried using the shopbot CA comand but it cuts it in the bottom left corner. Any ideas? Thanks.

[coach]

what size do you want?
Do you know the radius? There is a radius tool in part works. Draw a box, then make the radius with the tool in part works.
You can then node edit and cut the radius and then offset it.

[rww]

I think I've got it now. Thanks David.