3D printed lasts and insoles
The orthopaedic shoemaker tasked with making them faces a major problem from the outset as no two customers are ever alike. It is not just a case of different sizes between the right foot and the left, as one may be normal and the other not; alternatively, they may both be of a totally different shape. This clearly leads to all manner of manufacturing problems and it is for this reason that orthopaedic footwear is frequently so complex and always expensive.