IOIO Android Plotter

One relies on Arduino, the other on Android, but both structures transform a pop-art, the other in refined line threads in elaborate graphical Unikate – photos of faces.

The developer is as a creator of IOIO boards Ytai Ben Tsvi (say: JoJo-Board) known, extended the Android smartphones and tablets to inputs and outputs to measuring and control. Already 2013 he has knitted a library for motion control trappings, so that you can use IOIO for plotter operation by telephone. Thereby, the pen not horizontally moves along two perpendicular axes, but inside a gondola, which floats against a nearly vertical surface of the characters, two ropes, whose targeted and coordinated changes in length intended strokes pulling the PIN.

In combination with image recognition using the OpenCV library and an algorithm for path planning is a portrait character robot thereof that implements snapshots of faces in line art. While the original version of the IOIOPlotters by Ben Tsvi moved out yet the edges in the photo and brought the then good on paper, the system that experiment can be seen, according to a freer, but also simple procedure in the video above and in Google’s application collection Android works: the software starts the first straight line at the darkest spot in the photo (all subsequent start with the endpoint of the previous stroke). From the respective starting point, the program generates a certain number of random lines criss -cross over the template and calculated for each line runs over as many as dark pixels. That line, which removes the most dark pixels in total, is drawn. Then, the program masked the pixel in the template, so that the plotter does not always strichelt back and forth between the same points. In this way, a rather abstract, but quite recognizable and graphically interesting portrait is created. There is a replica of the drawing machine code at GitHub.

Coffee, instead of Farah

The pictures, which produced the plotter by Ted Kinsman appear similar to abstract: the Assistant Professor of photography at the Rochester Institute of technology has a drip machine built that in the strict grid brings droplets of defined size on the paper and produced so large unique pieces in the style of pop art. It provides approximately one drop per second. The following video shows the process in real time, then in time lapse:

Our colleague Sophia Smith of the U.S. make has looked more closely at the machine and talked to their builders. He told her the idea had come to him, because he dreamed for one for years by a machine that times for him, and on the other hand always cold coffee remains in its pot. His 2D-Plotter Arduino-based now brings together the desire and the existing material. While the machine works potentially with all that liquid and coloured is-also red wine or colored water. In the memory of the Arduino only images with approximately 8000 pixels will fit, but obviously that is sufficient for a recognizable portrait.

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