# SIGRobotics robotic arm balances ball with RL for 7 minutes

- Source: SIGRobotics · X
- Published: 2026-10-30T21:35:23.000Z
- RoboHot: https://robohot.news/en/items/j8ry940uk16h0zgmw6upvh862
- Original: https://x.com/sigrobotics/status/2116282846117560657

## Summary

Humans should be more coordinated than robots.

But that's not the case at SIGRobotics. @_robert_molina trained one of our robotic arms with reinforcement learning to bounce a ping-pong ball on a paddle continuously for up to 7 minutes.

Watch this time-lapse video: it just keeps bouncing.