Drone swarms tie knots in midair to lift objects autonomously
lukas_m_ziegler · x · 2026-11-15
Instead of bolting grippers onto drones, this work has multiple drones cooperatively fly coordinated paths while holding a cable, wrapping and interlacing it around an object in layers to form a "multilayer hitch." Key points:
- Two new actions — autonomous multilayer tying and release — complete a full pipeline: tie, lift, carry, release, with no human in the loop.
- Friction grows exponentially with each wrap, so a few interlaced layers turn a loose loop into a grip strong enough to lift the object; a capstan-based model gives a conservative rule for required layers.
- The formation algorithm runs in parallel, keeping execution time constant whether few or many drones are used.
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