<p><b> by Jeff Donlan</b></p><p>Estonian inventor Mihkel Joala has created a robotic spray-painter that he says can produce 300-foot tall murals.<p>To test his prototype, Joala’s startup company, Sprayprinter, printed a mural in Tartu, Estonia, on the chimney of a local heat supply company, one of the city’s tallest structures. Joala and his colleagues fixed the printer’s prototype to vertical and horizontal cords. A computer connected to the printer then sent coordinates to the printer telling it where to spray-paint, and in which color. This was done using a design from fellow Estonian artist Maari Soekov.</p><p>Roughly 14 hours and 30 cans of spray-paint later, the team created a vibrant, 98-foot mural of a girl holding a tree in her hands. Joala said he wanted to send an environmental message with this work, championing renewable energy.</p><p>“The main message in this artwork is that we need more plants and less chimneys,” he said.</p>Joala also hopes to break the record for the world’s biggest mural using this little robot as his medium.</p></p><br /> <p>The post How Did This Robot Spray-Paint A 98-Foot Mural?</a> appeared first on Vocativ</a>.</p>
