Disaster-response robot cuts wooden plank with handheld saw in secs

The Korean Atomic Energy Research Institute (KAERI) has developed ARMstrong Dex, a human-scale, dual-arm hydraulic robot designed specifically for disaster-response scenarios. A recent video demonstrates the robot’s ability to cut through a thick wooden beam (40 x 90 mm) using a handheld saw within seconds, highlighting its precision, continuous control, and dexterity without relying on powered tools. This capability is crucial for operating in disaster zones where power outages and obstructive debris are common, and where robots must perform tasks like cutting, drilling, and lifting with high accuracy to avoid further harm or structural instability. ARMstrong Dex is engineered to handle extreme conditions such as unstable terrain, toxic environments, and limited visibility. It features caterpillar tracks for mobility, can lift up to 441 pounds (200 kg) across both arms, and has demonstrated strength through tests like lifting 88 pounds (40 kg) with one arm and performing weighted pull-ups. Beyond raw power, the robot also exhibits fine motor skills, as