Sure, we didn’t get Baymax, but this little guy is still pretty cool.
The robot — aptly called “Beachbot” — works by dragging a set of pins through the sand, sort of like a rake. Each pin is individually raisable, allowing the bot to draw lines of varying thicknesses. More pins down = thicker lines drawn.
The artist behind the robot starts a canvas by setting down poles, which the robot uses as markers to finely calculate its position. At that point, the robot can be passed an image file to draw automatically, or the artists can steer it manually.
The Beachbot moves on a set of large, soft wheels that Disney has dubbed “balloon wheels”, allowing it to move across the sand without leaving tracks or screwing up whatever it’s drawn previously.
Why? A) Because why not. and B) It doesn’t require much thinking to come up with practical uses for this, even just within the realm of Disney. Disney has beach resorts. People would flip out to wake up in the morning and see their favorite characters drawn in the sand outside of their room — and by lunch, high tide would come in and wash it away, prepping the canvas for a new drawing the next day.
Conceived by Disney Research and working in partnership with a student team at ETH Zürich, the Beachbot is a mobile robot that can turn an ordinary beach into an artist’s canvas. Thanks to innovative balloon wheels, the robot is able to traverse sandy beaches without leaving any noticeable tracks. Drawing is achieved using a controllable rake at the rear of the robot, with individually controllable pins that can be raised and lowered to create thick or thin lines in the sand. The drawing area on the beach is defined simply using four vertical poles that define the corners of the desired sand canvas. The Beachbot can then determine its position on the canvas to a high degree of accuracy using depth sensing and IMU (inertial measurement unit) technology. Artwork can be pre-programmed as the robot can draw lines or create block-filled areas. Alternately manual remote can be used to turn a beach into a live sketchpad. Beachbot is just one of Disney Research’s projects in the area of mobile robotics, including work on path-planning, robot choreography, localization, and human-robot interaction.