Clone unveils a water-powered musculoskeletal android

Most humanoid robots today still stomp around like tin cans filled with noisy motors and gearboxes. Clone Robotics wants to change that by throwing out metal actuators entirely and giving machines real synthetic anatomy.

Clone just unveiled Protoclone, dubbed as the world's first bipedal musculoskeletal android. Instead of relying on conventional motors, this walking machine is animated by Clone’s proprietary Myofiber artificial muscle system, built from the ground up to mirror mammalian skeletal anatomy.

Muscle, water, and electricity

The secret sauce here is Myofiber, a synthetic muscle technology the company has been developing since 2021.

Rather than bolting rotating motors onto mechanical joints, Clone attaches monolithic musculotendon units directly to anatomically accurate points on synthetic bones. Making them monolithic eliminates the traditional mechanical failure point where artificial tendons tear away from joints.

The specs on these fibers are wild. A single Myofiber weighs just three grams, yet it responds in under 50 milliseconds, delivers an unloaded contraction exceeding 30 percent, and generates at least one kilogram of pull force.

Clone claims it is the only artificial muscle on Earth that hits this specific balance of power density, speed, force-to-weight, and energy efficiency. Even cooler, the entire system is powered simply by water and electricity.

The result is a featherweight humanoid designed not to wreck your living room floor. It features soft-bodied end effectors as plush as a stuffed animal, human-level grip strength in its fingers, and edge GPUs onboard to handle real-time robotics computation.

Why it matters

We think Clone’s approach is a fascinating detour from the industry consensus.

Right now, nearly everyone from Tesla to Figure is doubling down on rigid actuators, cycloidal gearboxes, and brushless motors. That established route is predictable and easier to manufacture, but it leaves robots heavy, stiff, and inherently dangerous around fragile humans.

Going full musculoskeletal with soft actuators makes a ton of sense for safe physical interaction. A lightweight, water-powered android that flexes naturally poses far less physical risk in home environments than a 70-kilogram steel exoskeleton.

However, the engineering hurdles look daunting. Musculoskeletal robots have historically been a nightmare to control reliably, and fluidic artificial muscles often suffer from seal degradation, fluid leaks, and material fatigue over millions of duty cycles.

You cannot buy one yet, and it is too early for developers to build production apps on it. But Clone is proving that the future of humanoid robotics might look less like a walking appliance and a lot more like synthetic biology.