1. Create every plane that you want to vary in an assembly with nothing in the assembly. create the planes in the exact way you want to control the finished design.
2. Create the sheet metal in context of the assembly sketching on the planes and relating flanges/taps to the planes.
I would start by using a contoured flange along the middle of the straight path with all the angles. So the first plane you need will be the center of the angled path for that first sketch. I think that should be one of the base planes.
I'm not a pro at solid works yet. But there is a very different way to skin this cat. Think path and profile (sweep). Is the cross section the same for all of it? A single 3D sketch with an extruded box could get you started, Then figure out how to turn that into sheet metal.
This can be done, but will take some work.
Here is the nut shell version.
1. Create every plane that you want to vary in an assembly with nothing in the assembly. create the planes in the exact way you want to control the finished design.
2. Create the sheet metal in context of the assembly sketching on the planes and relating flanges/taps to the planes.
I would start by using a contoured flange along the middle of the straight path with all the angles. So the first plane you need will be the center of the angled path for that first sketch. I think that should be one of the base planes.
I'm not a pro at solid works yet. But there is a very different way to skin this cat. Think path and profile (sweep). Is the cross section the same for all of it? A single 3D sketch with an extruded box could get you started, Then figure out how to turn that into sheet metal.