Hacker News Reader

Yes. You are exactly right. If you want the model to have some adaptability, you will need to train a policy like ACT or GR00T.

Just a quick difference I need to point out as it's critical product spec: leader arms are using 7.4v version of ST3215 (various gear ratios) while follower arms are using 12v version of ST3215. (12v version have higher peak torque at close to 3 Nm)

View on HN

> various gear ratios

for anyone following along at home: THIS IS NOT A SMALL DETAIL!

there are 12 servos total and 4 different types of 7.4 volt ones in the box. make sure you use the right one, or else you'll waste precious time to reassemble the arm.

Thank you for confirming! Love how simple yet magical your demos look, the elegance of bridging LLM-driven long-horizon planning with the arm.

Reply on news.ycombinator.com