Designing a new product is one thing, but making it capable of rolling out of the machine in the factory is a whole new thing. It's the difference between papers with a staple in it or a nicely bonded book. It's in the details like Moldflow simulations, stress strain calculations, FEM analyses, material selection, tolerances, surface finish etc.
For the launch of Precious Plastic version 3 we wanted to showcase that you can also make very precise objects from recycled plastic. Thanks to my knowledge of production methods I designed a iPhone case, a mold to make the case which was later milled by 3D hubs.