Published Oct 20, 2026 12:05 PM EDT In a world where tech leaders are racing to build autonomous machines that can do almost anything, one hobbyist is going the complete opposite route: an over-engineered robot that does exactly one thing and one thing only. T-Kuhn’s Hexa-Bouncer only bounces a ping-pong ball, but looks like it’s capable of far more. The six-armed, metal machine was first designed in a simulated environment and then brought to life with a CNC milling machine.