We are looking to manufacture nascent product design ideas coming from common folks. This product design idea is about a 'Lunchbox Template'. We have a rough design sketch created here for this. (Any more details required w.r.t. the design would be furnished).
The initial idea/ user need is as outlined here - "I prefer to carry my lunchbox to office in a cloth bag along with a cup of home made coffee in a flask. However, when I put them both in the cloth bag they tend to get difficult to carry in commute".
From you, we are primarily looking at model design that would be 3d printed going forward. We have attached images of the lunchbox and coffee flask here with dimensions. The representative sketch (as a design solution) is to be referred for creating the model.
The 3d model output file could be a .obj, .stl.