3D modeling of shoe sole (Cup Sole) for mold (DWG/STP)

Who we are:
Brand of anatomical footwear (barefoot) BOSI. We are scaling production and transitioning from manual stretching of sheet rubber to industrial sole casting.

Task:
Develop a design, precise 3D model of a "cup sole" (cup sole with a rim) based on our physical samples and shoe last parameters. The model will be used for manufacturing a steel mold (CNC milling).

Technical requirements:

1. Sole type: Cup sole (high rim that goes over the toe and heel).

2. Base: The geometry must clearly match the footprint of our last (we will provide measurements: length, width, contour). The reference size is 41.

3. Parameters: Thickness of the tread part — 4 mm (and 6 mm, two options of one design), height of the rims — approximately 15-20 mm.

4. Texture: The rims and tread part must have a "crepe rubber" texture (natural crepe) (texture in the reference).

5. Manufacturability: The model must be designed considering draft angles, so the part can be easily removed from the mold after rubber vulcanization.

What you will receive for work:

• Photos and videos of the current design (handmade), which needs to be digitized.

• Exact measurements of the last's footprint and key height points.

• Examples of similar solutions from global brands (Vivobarefoot, Mukishoes).

Result:
File in .dwg and .stp (or .step) formats, fully ready for transfer to the factory engineers.

Criteria for successful result:

1. Full compliance with the contour of the last.

2. Absence of errors in geometry that would hinder mold manufacturing.

Experience: Preference will be given to candidates with experience in the footwear industry or industrial design of plastic/rubber products.