Arrakis 2.0 Sand Table
The fastest sand table in the known universe! A hidden robotic mechanism moves a magnet under the table, and the magnet moves a steel ball through a thin layer of sand on top of the table, producing beautiful and intricate patterns in the process.


Mark Rehorst
Grew up in Milwaukee, got degree in EE from UWM in 1981, worked, traveled, worked some more, went back to school and became a dentist in 2011, worked some more, retired in 2023.
More Maker Info
https://drmrehorst.blogspot.com/More Event Info
More Project Info
https://drmrehorst.blogspot.com/2022/11/arrakis-20.html
What inspired you to make this project?
I had finished designing and building a corexy 3D printer and thought the corexy mechanism would be good for sand tables, so I decided to build one for the 2018 makerfaire. I then spent the next few years refining the design, making it go faster and quieter. The current table is the coffee table from my living room.