Why not just build a robot to create the perfect Zen garden in miniature? That was what [Tim Callinan] and his classmates did for a semester project, and the “ZenXY” sand plotter was the result.
[Nick] is working on a prototype of a coffee table sand plotter that draws patterns in sand a lot like a zen rock garden. [Nick]’s zen rock garden uses a magnet to draw a ball bearing across ...