URGENT 3D SANDWICH LUNCHBOX MODELS

I have four sketched concepts for sandwich-friendly lunchboxes that must be converted into four separate, print-ready 3D models no later than the evening of 23 September. I work in OnShape and Fusion 360 (either is fine), so the entire project needs to be built there; feel free to reference or import from other tools if you like, but I need the native OnShape or Fusion 360 files at hand-off, along with clean STL exports for printing.

Each model must follow the exact pictures i will provide in terms of aesthetics and different compartments- so please, no experimenting creatively, the models must follow my drawn design ideas (which are attached below). Exact dimensions are flexible—as long as a standard sandwich fits and the box remains practical for FDM printing, I’ll sign off (the only dimensions that must be followed are the ones of the "Untitled_Artwork 5.jpg", where width and length must be 20cm x 20cm with a 10cm height max).

Deliverables (by 23 Sept):
• Four individual OnShape or Fusion 360 files, one per concept
• Corresponding watertight STL files ready for slicing
• A brief note on proposed dimensions and print orientation for each design

Models that fail manifold checks or arrive only as screenshots will be rejected, so please run your own pre-print validation before sending. I’ll share the reference images immediately after we agree to proceed, and I’m happy to answer quick questions along the way to keep the schedule on track.