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Development of a Graphic and Braille Optimized Plotter for the Blind and Visually Impaired

  • Denise S. WußlerEmail author
  • Kai Sachsenheimer
  • Bastian E. Rapp
  • Thorsten Schwarz
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10897)

Abstract

With the development of this plotter, a cost-effective and easy assembly was created to allow a better accessibility to well-recognizable braille text and tactile graphics on standard DIN-A4 paper for blind and visually impaired users. In comparison to currently employed systems, the developed device consists of a commercially available X/Y-plotter, which enables a movement in two orthogonal directions at once. Thus, not only the embossing of single dots, but also of continuous lines on a flat surface is possible. The plotter was extended by a solenoid that can change the force on a convertible embossing pen in Z-direction. Further parts were constructed and added to enable material feeding, material removal and paper fixation while printing. In a survey with six blind and visually impaired people, the results of the plotter were tested for good readability and recognition and compared to a conventional needle-based-system. Most of the participants would use the results produced by the plotter at hand in their daily life.

Keywords

Graphic and braille optimized printer Tactile print on paper Continuous lines 

References

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Denise S. Wußler
    • 1
    Email author
  • Kai Sachsenheimer
    • 1
  • Bastian E. Rapp
    • 1
  • Thorsten Schwarz
    • 1
  1. 1.Karlsruhe Institute of TechnologyKarlsruheGermany

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