Michelle Sun(@michellelsun):What does it take to build one robot actuator? We mapped it from the mine to the supplier. - 52 named suppliers, sourced from filings and company disclosures - 66 parts, processes and materials across 9 stages - Rare-earth magnets: 8 named makers and the refining chain behind them - Steel connects to 48 items in the map - One ring gear traced to the machine that cut it Click any part to see what it depends on. Hit “Simulate a shortage” to watch it spread. This is v0.1. We add suppliers as each one is sourced. Explore the interactive page in the comment, and please share any feedback ! Follow @CoreMatter

2026.10.06 20:32

What does it take to build one robot actuator? We mapped it from the mine to the supplier. - 52 named suppliers, sourced from filings and company disclosures - 66 parts, processes and materials across 9 stages - Rare-earth magnets: 8 named makers and the refining chain behind them - Steel connects to 48 items in the map - One ring gear traced to the machine that cut it Click any part to see what it depends on. Hit “Simulate a shortage” to watch it spread. This is v0.1. We add suppliers as each one is sourced. Explore the interactive page in the comment, and please share any feedback ! Follow @CoreMatter_ for physical AI deep dives.