Cnc Milling Robotic Arm: Eight Torus

This study focuses on how using a CNC robot arm in producing mathematical surfaces can expand production boundaries. It investigates the repeated production of a double-curved eight torus surface defined by mathematical equations using a CNC robot arm and timber material through two fabrication experiments. The eight torus is parametrically modeled in Rhino-Grasshopper with the MathForm plugin. The milling operations for roughing and finishing are simulated using SprutCAM software. The form is produced from laminated ayous timber using a KUKA KR200 CNC robot arm. The fabrication parameters for both experiments are largely similar. The fabrication process is investigated based on speed and time, comparing the simulation and fabrication processes as well as the experiments themselves. The results highlight the challenges in milling concave curved parts of double-curved forms and the impact of the assembly method on fabrication time and speed.