If the person being fed misjudges the spoon, or sees it late, can a blind feeding arm still do without a camera?

What it found

A stdlib extension of osrobot-lean's planar feeding-arm twin in which the user leans toward a perceived spoon position that is delayed and offset by a per-feed misjudgement (200 paired trials per row, 30 mm sway, 0.20 m/s, 100 mm/s lean). A blind arm's share of feeds with peak lip force at most 2 N falls from 1.00 with a perfect leaner to 0.83, 0.60 and 0.47 at 10, 20 and 40 mm of misjudgement, and only 0.50 of feeds reach the mouth at 40 mm; the camera arm falls from 0.97 to 0.69 and always feeds. A perception delay of up to 0.2 s changes little; 1.0 s drops the blind arm to 0.46. Stylised: constant offset, assumed constants, no safety case.

A figure from its own output

Paper, code and results

• README and method
• Experiments and results
• Code
• Tests

More in Open-source purpose-built robots

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Other research topics

Proper scoring & elicitation28Effort & peer prediction9Verification games & slashing19Detection & tolerances14Markets as routers13Prediction-market design9Paying contributors8Decentralised training systems23Digital twins & sim-to-real164LLM chip design loops40Robot manufacturing loops53Ambient AI assistant46Self-replicating manufacturing34Simulation-first design64Engineered clothing45Task-specific AI accelerators40Algorithmic chip-design loops42Open-source purpose-built robots44The software-engineering loop43Adversarial human imitation41Open-source residential construction41Autonomous multi-angle capture34Sensing, imaging and 3D31Energy supply and dense energy storage39Robot societies among people31Agentic co-design of low-cost robots27Laundry-hanging robots25Machine learning on qualitative data23Robots on the building site27Civilizations & group psychology1History & human sciences1

Produced with AI assistance (Claude). Results are from the code in this repository and are simulated or stylised unless the abstract says otherwise; nothing here implies affiliation with or endorsement by any lab, researcher or company cited. MIT licensed.