I'm doing a 2d contour on the part...basically a radius and a side. I read the help file on bounding the material but surfcam won't process the contour if I try this. Does the material boundary have to be 3d? Or is this controlled by the material tab? I click the material button, chain the contour of the material, click the part button, then chain the contour..once that's done it basically puts out nothing..what am I missing?