This may include gluing pieces of string to the paper to make lines that feel different, gluing on pieces of other types of paper to make a sort of bas-relief, and so on. The copy is bound into the book, and the original is kept to make more copies. This not only saves time and money, but also provides a copy that is often more durable than the original. All this sounds very labor-intensive, and it is. A simple graph or chart usually takes from fifteen minutes to half an hour to produce.
Maps can take much longer.
Braille printers can produce graphics, but their quality is usually not good enough. There are technologies which can produce raised images of photocopied materials, but the quality is usually inferior to that of our current techniaue. Recently, a Braille printer, the Tiger Advantage Tactile Graphics Embosser from ViewPlus Technologies , has become available, which can indeed produce results as good or better than the methods we are using. We are currently seeking funds to purchase this equipment. All production is done in our Technical Braille Center .