The number that jumps out is one kilogram. This four-legged robot, framed in blue 3D-printed plastic, carried a 1000g load and kept walking, after working up through 400g and 800g in three successive tests. That is a serious amount of mass for a printed quadruped to handle.
Under the hood it is a servo-driven machine: each articulated leg is actuated by multiple servo motors of the ST-3215-C018 type, and an internal control board with an illuminated status LED sits inside the body. Wiring runs through the frame, and a black cylindrical component is mounted on the front. The build is available on GitHub for anyone who wants to dig into it.
The motion sequence looks tidy: the robot stands up from a resting squat, moves forward with coordinated leg movements, and lowers itself back into a crouch once it stops. It is not perfect. A few steps got fumbled while carrying the load, and the maker notes the ST-3215-C018 units cannot move quickly. Two open questions came out of this update: what else the robot could carry, and whether the ST-3215 cousin SO-ARM101, which uses 12 servos, might be worth a try.