Tesla
Tesla Optimus demonstrates synchronized hands and legs movement

Tesla has published a new video of the Optimus robot to showcase its new hand and legs synchronization during a walk movement, and it’s better than before.
Elon Musk, CEO of Tesla, posted this video on the social media site, which reveals that bot’s legs moving in a rhythm along with hands. It was walking straight to a distance without any other actions like picking an object or something else.
Compared to the previous walk cycle demos, this new clip was much smoother and looks more natural. Musk also mentioned that the actuators in the bot have enabled fast movement over previous improvements.

Tesla Optimus Robot (Source – Tesla)
Actuators convert energy into mechanical motion, acting as the “muscles”. In the case of Optimus, actuators enable the robot to act like a human for walking, perform hand gestures, picking something with fingers.
It has three types of rotary actuators and three linear actuators. The rotary actuators produce rotational motions such as joints in shoulder, elbow, and knee. The Linear actuators accelerates motion such as extending an arm or lifting an object.
Tesla connected actuators to Optimus control system that sends and receives signals to conduct movement. Sensors provide feedback to ensure the robot’s accurate movement for a provided task.
Therefore, precise actuators will make robot’s movement smoother during walk cycle and other tasks.
Accurate actuators accelerate automation pic.twitter.com/5H0uHxf7v2
— Elon Musk (@elonmusk) April 2, 2025