We brought you word last month that two men were working on an open source prosthetic hand that could be created with any 3D printer. The first hand was being tested out on a little boy named Liam who was born without any fingers on his right hand. The team had already made some amazing progress, but the latest iteration is the best yet.

The team behind the robohand recently uploaded a video of Liam getting used to the latest version of the robohand. This particular build is “powered via cables and return bungees.” According to Liam’s mother, his new hand “was a huge hit” among the teachers and fellow students at his school. In response to the hand, the boy’s doctor said that he would not require any operations.

Now that the hand is in the public domain, the two designers are now facing massive demand from others around the world who need help in getting a robohand to a loved one or friend. They’re working around the clock to do so, but the team is in need of more funds to continue work on the project.

If you would like to download the robohand for yourself and make your own, it’s available on Thingiverse. If you want to donate to the team behind it, you can do so here. All the money will be used in helping bring this new technology to other people around the world.

[h/t: 3ders]