No need to use picture frame, you can import the pdf into Rhino, as you already did. Don’t try to start by making it a solid. My workflow would be to create surfaces for each individual panel, and fold them up using
Rotate3D . Then I would use
OffsetSrf with the option “solid” to give it some thickness. You should realise that folds in sheet material are notably difficult to mimic, how the material behaves is dependant on thickness, consistency of the material, indentation of the fold line etc. But for thin materials I think my method is sufficiently close.
To create a surface you will need a closed and planar curve to begin with. Since the curves are imported from a 2D file, Planar is guaranteed, however Closed is a different matter, which is also why you did not succeed in creating a solid.
- select all lines and change the property “color” to “by layer”, to give a clear indiction of which layer they belong to.
- select all lines and
- create two more layers “construction” and “surfaces”, and give them contrasting colors.
- select the curves that define a single panel (as a minimum, more is ok), right-click on layer “construction” and choose “copy objects to this layer”
- make construction the active layer
- make Default invisible
- work the curves such that they connect to or intersect with each other. Now this is easier said than done. I use
connect and go around the circumference to connect all curves. There may be some lines that are overlapping, so I use
CurveBoolean to generate a new closed curve with the original lines as boundaries. While this new curve is still selected I use
PlanarSrf to create a surface.
- move the surface to layer “surfaces”, you can simply change the “Layer” property of the surface.
- Fold the surface in position with
Rotate3D. Most if not all of the folds are 90 deg., so the easiest is to open the Perspective viewport with “Ortho” on. Pick the surface(s), pick two points on the fold and rotate.
- select all curves on layer Construction and delete those.
- repeat as before
Note that there seem to be some fold lines missing on the little tabs.