![]() ![]() The Raster Braille system is the preferred method for making Braille signage for several reasons: Prices range from about $1,995 to $2,235 with a license, depending on which version you buy. One has to be pretty serious about making ADA signs to invest in it. Today, Accent Signage not only sells the system themselves, but also through Rowmark and all of their distributors, Gravograph and other industry suppliers.įigure 3: Raster Braille has come a long way from the original insertion tool that used a fish tank pump to pick up and hold the spheres.īy most standards, the Raster Braille system is a fairly significant investment (and always has been). Then you insert spheres (Rasters) into the holes which provide a tactile raised Braille message.Īccent Signage is the current owner of the Raster technology and they have greatly improved the original system and the documentation. The principle utilized in the Raster method of Braille is that you use your (rotary) engraving machine to drill a series of holes in the substrate delineating the location of the Braille dots. Edgerton & Associates around 1998 or so, the system was patented and eventually sold to Accent Signage Systems, Minneapolis, MN. Now here is a look at some options for incorporating Braille into ADA-compliant signage.Īlthough it is not the only way to produce Braille signage, perhaps the most common method utilizes “Raster Braille.” Created by David Edgerton of D.A. Braille translation software is used to convert text to the literary Grade 2 Braille. Grade 2 Braille utilizes “contractions” which vary the spellings of some words. The ADA specifically mandates “Grade 2” Braille which is a slight variation from Grade 1 Braille which is a letter-for-letter translation. This can be done with a special rotary engraving tool that holds a tiny drill bit.īraille is the literary language of the blind, where each letter consists of a series of raised dots that a Braille-literate person can read by running his or her finger over the row of Braille characters. ![]() Figure 1: Before the spheres can be inserted, holes must be drilled into the substrate to the proper depth.
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