I Received today the last protrotype not in ABS but in Polypropylene (PP), the same material as the original piece. The finish is very nice, somewhat resembling a sandblasting. To generate this prototype, we needed to create a first machined prototype in ABS and create a latex mold with this one and from this mold inject PP material and generate this current prototype.
Test a PP prototype is required to check the fexibility of the product, that not possible with the ABS because that hard plastic and dont have a good resist at deformation.
The small defect visible in these picture on inside of the part, come because this is a molding PP part. These defect will never exist in the final product.
The final parts will be create by molding injection into a metal mold, that guaranteed a constant quality on 20'000 items.