In Brazil, the matrices required for the reproduction of tactile maps still favor a craft production and time-consuming. This article presents one proposal to manufacture tactile arrays from different techniques and rapid prototyping technology and to determine the feasibility of rapid prototyping in the automation of the manufacture process of tactile arrays. First, a revision of the literature on the subject was done, within the existing prototyping processes which can be used for making tactile arrays, especially regarding the ability of the raw materials on resist pressure high temperatures, during the production of the final maps. Despite the fact that these operational requirements constitute a disadvantage in terms of specialized equipment, the main gain in employment of these can be got by ensuring a generation of identical matrices and flexibility in the choice of tactile patterns. The first prototypes were made of different materials (polyurethane, plaster dust and Uriol) using two processes: 3D printers and milling machine. The matrices were made only with the use of the milling machine, using polyurethane and MDF. Tactile perception test were done by the reviewer Braille Institute Benjamin Constant, observing the standard methodology adopted by the institution in all materials produced.
Tactile Cartography; Tactile Maps; Rapid Prototyping; Visually Impaired People
