Haptic displays have promising applications in assistive devices for the visually impaired. However, current versions of this technology remain confined to low resolution tactile replications of images, and thus provide limited usefulness. Conventional haptic displays use motors or electrodes to convert images to touch, using an interface that is applied...

Micromilling is a material-removal manufacturing process for producing parts with features measured in microns that have sub-micron manufacturing tolerances, often done via computer numerical control (CNC). A rotary tool called a micro end mill etches designs into the material with a toothed, multi-headed drill bit. A chip is cut away each time a tooth...