Awesome 3D printed rolling ball "roller coasters"

  • Erik Pettersson from Enkoping, Sweden made an inspiring gear painting on his eMaker Huxley 3D printer back in 2011. Last year he created a beautiful 3D-printed Kinetic sculptures. This year Erik Pettersson comes up with another 3D printed art-project: the ball sculpture. It reminds me the SpaceWarp, line ...