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)


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.


Graphic and braille optimized printer Tactile print on paper Continuous lines 


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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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