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CBR-II DIY Bipedal Robot Releases V3 and Recaps Training

2 reports · 1 sources

Reddit user /u/jekjukich released the third version (V3) of the DIY bipedal robot CBR-II: walking is more stable and jitter is noticeably reduced, but when a "forward" step is immediately followed by "stop," the front foot still slams heavily onto the ground. The author says single-leg balance is achieved every time in simulation, but on the real hardware it is still far from perfect; he originally considered jumping or even a backflip, but the hardware is too fragile—one joint broke three times in a single day, and a GT2 belt also snapped, so the project ends here for this year. A subsequently released video recaps the complete process of training the walking policy with reinforcement learning and deploying it from simulation to the real robot, and shows the final results on the hardware. The robot can currently walk and stand on one leg.

Developments

  1. CBR-II: A DIY Bipedal Robot Project Retrospective · 1 reports
  2. DIY bipedal robot CBR-II V3 update: smoother gait, attempts one-leg stand · 1 reports

Report timeline

  1. CBR-II: A DIY Bipedal Robot Project Retrospective

    A project video for the DIY bipedal robot CBR-II reviews the complete process of training walking policies with reinforcement learning and deploying them from simulation to the real robot, and shows the final results on the hardware. The robot can now walk and stand on one leg.

    Reddit r/robotics ·

  2. DIY bipedal robot CBR-II V3 update: smoother gait, attempts one-leg stand

    The DIY bipedal robot CBR-II has released its third version (V3), walking more confidently with noticeably less jitter, but when "forward" is immediately followed by "stop," the front foot still slams heavily into the ground. In simulation, V3 balances on one leg every time, but on the real machine it is still far from perfect; the author says the hardware is too fragile, with one joint breaking three times in a day and a GT2 belt snapping, and the project ends here for this year.

    Reddit r/robotics ·

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