If anyone suddenly want to advertise directly on the beach or send a message from a deserted island flying aircraft in the form of neat inscriptions on the sand, then the sand robot was developed by Ivan Miranda for that is simply irreplaceable.
To print text on the sand he uses big linear actuator on wheels, slowly moving from one printed column to another. The text is very similar to the format of a matrix of 60-70 years. The robot prints vertically, making the right indentation. The nozzle goes up and down, carefully painting each letter, of which formed visible columns.
Perhaps the main problem is the slow printing speed, which can cause some inconvenience, for example, on the beach, where the wind can scatter the ready-made letters and words.
After the first test the sand robot Miranda hope for success, but the speed, according to it can be acquired.
Source — Ivan Miranda