Here's a great short video (2 minutes) about the
Chalkbot robot that
Nathan Martin and
David Evans from
deeplocal built by hand. The
Chalkbot was funded by
Nike writes messages with, you guessed it, chalk, on concrete and was featured in this year's
Tour de France. It's awesome! Now if only these were affordable I would totally get one and run it all the way up and down Carson and Penn printing images!