Build your own open source robot arm for just $370
Alexander Koch, who aims to build a general-purpose AI for robots, has released a robot arm that can be made for just around $250 (about 37,000 yen) on GitHub.
GitHub - AlexanderKoch-Koch/low_cost_robot
Below is a video of the open source robot arm that Koch has published on GitHub in action. This robot arm is not only cheap, but can also be trained with machine learning to move using only camera images and the status of the joints.
Early results from my AI training runs. I've trained my $200 robot arm on a simple picking task using imitation learning. It has learned to control the robot arm using only camera images and joint states. pic.twitter.com/gEw0D74Z3E
— Alexander Koch (@alexkoch_ai) February 11, 2024
The two arms can also work together to fold clothes.
Folding clothes with $250 robot arms. I've added another motor to improve mobility and extend the reach. The CAD files and the code are public at: https://t.co/2J1aS6Jred
— Alexander Koch (@alexkoch_ai) March 26, 2024
(video at 2x speed) pic.twitter.com/ylZo959YpP
Two strong servo motors, the 'Dynamixel XL430-W250,' are used in the joints, while four lightweight 'Dynamixel XL330-M288-T,' weighing just 18g each, provide agile movement.
The design was based on another robot arm project called ' ALOHA ' being undertaken by Meta, Stanford University, and others, and the robot arm project ' GELLO ' from the University of California, Berkeley.
The procurement costs for parts are as follows:
| parts | price | Purchase Link |
| Dynamixel XL430-W250 x 2 | $100 (about 15,000 yen) | https://www.robotis.us/dynamixel-xl430-w250-t/ |
| Dynamixel XL330-M288-T x 4 | $96 (approx. 14,500 yen) | https://www.robotis.us/dynamixel-xl330-m288-t/ |
| Idle gear for XL330 | 10 dollars (about 1,500 yen) | https://www.robotis.us/fpx330-h101-4pcs-set/ |
| Idle gear for XL430 | 7 dollars (about 1,000 yen) | https://www.robotis.us/hn11-i101-set/ |
| Serial Bus Servo Driver Board | $ 10 | https://a.co/d/7C3RUYU |
| Voltage reducer | 4 dollars (about 600 yen) | https://a.co/d/iWJlp6A |
| 12V power supply | $12 (about 1,800 yen) | https://a.co/d/40o8uMN |
| Table clamp | 6 dollars (about 900 yen) | https://a.co/d/4KEiYdV |
| wire | $7 | https://a.co/d/hQfk2cb |
An expert can assemble it in 20 minutes.
The assembly takes about 20 minutes by an expert. I've uploaded the full assembly video on YouTube ( https://t.co/NCqliLdKY4 ). The designs are optimized for 3D printing. Only one part needs supports. pic.twitter.com/Ai6hiFGK6e
— Alexander Koch (@alexkoch_ai) March 23, 2024
Related Posts:
