Fig. 3: Proprioception and simultaneous contact detection during motion.

Given the different sets of continuous control commands, the robot is blocked by obstacles and actively perceives (A) tip contact detection and (B) sensor contact detection. C The experiment on contact with material of varying softness, including Ecoflex10 (Smooth-On, Inc. 55 kPa), Ecoflex30 (69 kPa), Dragonskin10 (151 kPa), Dragonskin30 (593 kPa), and printed PLA (Rigid).