RoboBoom
The Humanoid Hub· September 25, 2025· 59:42

Elon's pay package, Figure humanoids "Go-Big", "Kleptoler" Robotics, and more

Scott Walter, robotics expert and self-described humanoid bot evangelist, discusses humanoid robotics news with The Humanoid Hub host on the podcast.

In this talk

  1. 0:38

    Tesla Optimus design and pay targets

    Walter estimates Tesla’s count of 26 actuators refers to the forearm, including 24 for the hand and two for the wrist; he believes the full arm could need about 31. He says Optimus Gen 3 is not finalized and may look very different from Gen 2, making a reveal by the end of 2025 unlikely. The discussion also covers Elon Musk’s 10-year target of one million bots delivered by 2035, with Walter suggesting robot-as-a-service could generate substantial recurring revenue if a large fleet stays active.

  2. 24:38

    Figure’s Brookfield partnership and human data

    Figure announced a $1 billion funding round at a $39 billion valuation, plus data collection and a Go Big partnership with Brookfield. Walter highlights the possibility that Brookfield workers will collect first-person data during their regular jobs. He says the approach could help train robots, but task variety, inconsistent recordings, operator habits, and data quality will make collection and curation difficult.

  3. 34:48

    Wuji’s direct-drive hand and robot actuators

    Walter describes the Wuji hand as a 20-joint, 20-actuator design with rotary drives rather than tendons, weighing about 600 grams and reportedly offering 20 kilograms of grip strength. He explains how motors and gearing fit into the finger segments, and why the base finger joints prioritize flexion for grip. The conversation then compares cycloidal and harmonic gear reducers, including their construction, efficiency, shock resistance, and manufacturing tradeoffs.

  4. 54:34

    Kepler’s Optimus-like design and practical limits

    The hosts discuss Kepler’s robot, which they describe as closely copying Optimus, and criticize its slow walking demonstration. Walter says Tesla and Kepler may be running into similar limits with their leg actuation strategies and linear drives, which can be costly and difficult to work with. They also discuss when a robot can remain plugged into power and the possibility of Optimus plugging itself into a charger.

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