The part below has multiple radii and two flat lengths at each end. I'm having trouble getting the flat pattern. It always has at least one item that can not be unbent. I originally made a sketch of the complete profile and then used 'base flange' and selected the sketch to create the sheet metal. Then I did a profile of just the radius sections and added the straights as edge flanges. Same results. Any ideas? I've attached the model Thanks!