I'm reverse engineering a sheet metal part that we did not get the solid model for. I have to make a label fixture for it. I made the main bends but couldn't figure out how they did the bend reliefs / cutouts.
My method was to create the initial bends.
Then cut the cutouts using a sketch on the side
Then adding back the material to make the reliefs using a sketch.
When I open the flat pattern it looks pretty good, but damned if I can figure out how to do this without all the slicing and extruding.