> That service will have the 3d models already made
Someone somewhere is CAD'ing these pieces up. The cost of doing that will be passed on to the consumer. If the manufacturers provide the models the cost of the 3D printed piece will be more expensive than replacing the whole part. If a manufacturer invests the time into making sure their component library can be 3D printed they will make sure 3D printers exist in dealerships. Huge overhead costs are involved here.
Someone somewhere is CAD'ing these pieces up. The cost of doing that will be passed on to the consumer. If the manufacturers provide the models the cost of the 3D printed piece will be more expensive than replacing the whole part. If a manufacturer invests the time into making sure their component library can be 3D printed they will make sure 3D printers exist in dealerships. Huge overhead costs are involved here.