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NEW OPEN SOURCE ROBOT: A cheap, lightweight, and agile platform for locomotion! Called BRIDGE, it is an open-source humanoid robot platform, hardware plus control system. It is an 88 cm, 12.5 kg humanoid with 21 active degrees of freedom that costs roughly $1,500. Its distinguishing idea is that the... body and the controller are designed together through a three-stage data-driven pipeline: - anatomical constraints - kinematic criteria - closed-loop dynamic criteria Hence the morphology itself is optimized to preserve human motion quality when the robot executes. It demonstrates teleoperated locomotion, balance-oriented motion (bending, lunging, extreme balance) and highly dynamic motion including back-flips and expressive sequences. I like that the thesis is designing the body and the controller together, not a controller for a fixed body, which inverts how nearly everyone else works; the robot is usually given, usually a Unitree G1, then train a policy on it. At the end of the day, it is a sub-$2K open-source humanoid that does back-flips, the humanoid analogue of the cheap-arm democratization.show more

Léo

2,062 subscribers

23,248 views • 1 month ago •via X (Twitter)

Science & Technology

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4 Comments

Steven Cheng1 month ago

Co-designing morphology and control is the right move. Most people just train policies on fixed hardware. Getting dynamic moves like backflips at this price point changes the game for open source robotics.

AI Quanting1 month ago

That price is one row in their comparison table, next to Bumi, K1 and Toddy. Their page lists the assembly tutorial, electrical specs and bill of materials as coming after acceptance.

OrbieRobot1 month ago

Building the body and controller together instead of just throwing a policy at a fixed chassis like a Unitree G1 is a brilliant way to rethink things, and getting back-flips out of a sub-$2K open-source humanoid is impressive.

玉米_AlphaNotes1 month ago

价格便宜才是王者，动不动 99999W 刀乐，太贵了。

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