Computerized Production for Tactile Graphics

Touch Graphics creates raised-line and textured (tactile) graphic images that are of unparalleled quality, consistency and aesthetic appeal. Our multi-step process was developed in collaboration with the Baruch College Computer Center for Visually Impaired People, and was inspired by early research carried out by Dr. John Gill of the Royal National Institute for the Blind in England. The images on this page show some of the steps in the production process:

Figure 1 shows a computer-controlled three-axis router that we use to engrave a reverse-reading three-dimensional image for the desired graphic into an acrylic plastic plate.

Figure 2 shows an example of a right-reading mold that was made by pouring a silicone rubber casting compound onto the surface of the engraved plate.

Figure 3 shows a detail of the mold.

Finally, thin PVC sheets are embossed with the raised-line image through a vacuum-thermoform process, using a Maxi-Form Braillon Duplicator, manufactured by American Thermoform Corporation.

Figure 4 shows the final product.