Here's another great application for 3D printing. This site will generate tactile street maps. It can work with embossers and capsule paper, but, if you have a 3D printer, it will generate a 3D model you can print that differentiates between small streets, highways, and waterways, by the height of the lines. It even has little raised models of buildings. It uses Open Street Map, which is okay, but wish we could use a commercial service with more detail. https://touch-mapper.org/en/