Robot with Water-Powered Muscles: Clone Robotics’ Humanoid Torso Uses AI-Driven Hydraulics for Realistic Movement in Medical and Industrial Applications

Rahul Somvanshi

Torso by Clone | Bimanual Android with Artificial Muscles. Photo Source: Clone (YouTube)

Poland-based Clone Robotics has engineered a water-powered humanoid torso that pushes the boundaries of biomimetic robotics through its novel hydraulic muscle system. The startup, founded in 2021, employs a sophisticated battery-operated network of pumps and valves that circulate water through artificial muscle fibers, achieving natural human-like movement patterns according to their demonstrations.

The technical architecture centers on a precisely engineered joint network comprising sternoclavicular, acromioclavicular, scapulothoracic, and glenohumeral components. These work alongside an actuated elbow system and cervical spine mechanism, all integrated within a lightweight skeletal framework. The system implements machine learning models for motion control and adaptation.

The system must be using machine learning for motion planning and movement optimization. As per a report by Datintelo “The global anthropomorphic robot market is expected to grow from USD 1.02 Billion in 2017 to USD 3.36 Billion by 2030, at a CAGR of 16.92% during the forecast period.”

“Compared to traditional rigid-bodied robots, soft robots are constructed using physically flexible/elastic bodies and electronics to mimic nature and enable novel applications in industry, healthcare, aviation, military, etc.” say the researchers behind a study, “Recent advances in biomimetic soft robotics: fabrication approaches, driven strategies and applications,” while explaining the applications. 

Clone’s machine learning algorithms adapt to varying task requirements while maintaining safety parameters. Medical applications show particular promise, with rehabilitation trials expecting to improve patient engagement metrics during teleoperated therapy sessions. 


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Clone’s water-based muscle simulation technology addresses the power-to-weight ratio challenges that have historically limited humanoid development. The current system achieves movements through its unique hydraulic architecture while maintaining a human-like form factor. However, torso’s arm movements, while still somewhat jerky, might be undergoing refinement. The company is also developing a head component, though their complete plans for full humanoid development remain unclear.  

Clone’s implementation enables continuous optimization of movement patterns through machine learning and real-world task completion data. 

The integration of machine learning systems with precise hydraulic actuation represents a unique approach to humanoid robotics, offering new possibilities for human-robot collaboration in industrial and medical applications. The technical challenges ahead focus on further refinement of the control systems and optimization of the hydraulic power delivery network, while maintaining the biomimetic principles that define the system’s core functionality. 
Notable competitors in the humanoid robotics space include Tesla with their bipedal bots and EngineAI from China. The Clone torso’s ghostly white protective covering, while drawing comparisons to androids from TV shows, serves the practical purpose of protecting the electronic components within.

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