RobotBox user jbot added a nifty blog post today about using his robot to paint with light. Inspired by images of Roomba's with LEDs, he added a set of LEDs to his robot, PlexiBot and took some long exposure photos as PlexiBot traveled around. The results are quite beautiful.
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/blog/show/light-painting-with-robots