Skip to main content
  1. Home
  2. Emerging Tech
  3. Legacy Archives

Meet the tinkerer-turned-prosthetic pioneer who 3D printed a working hand

Add as a preferred source on Google

liam robohand prototypeivan owen mechanical hands

Two years ago, Ivan Owen was a hobbyist, accordion player and craftsman who built medieval armor, metal costumes, and chain jewelry, which he sold through his Etsy shop, ChainCrafts. When he hacked together an oversized mechanical hand as an experiment and posted a 49-second clip on YouTube, he had no idea the course of his life was about to change forever.

The clip caught the attention of Richard Van As, a South African engineer who recently lost his fingers in a woodworking accident, the hand began the transformation from simple toy to a life-changing tool. Together, they began tele-collaborating from 10,000 miles apart, working across a 10-hour time difference to create 3D-printed prototypes of a “robohand” to aide those who share Van As’ struggle. The final product landed in the hand of Liam, a five-year-old South African boy who was born with Amniotic Band Syndrome that left him with no fingers on one hand. Plans for the prototype can also be found on Thingiverse at no cost to users, for those interested in creating their own.

Recommended Videos

We chatted with Owen on his Internet collaboration story, and how one fateful YouTube clip may have changed the future of medicine.

Digital Trends: What was it like working remotely with Richard on something so complex?

Owen: Richard and I are equal design partners, which made the project all the more possible. He has a lot of insight because he’s a former machinist, and I help with the design. We communicated mostly via Skype and email, until one day Richard’s friend kindly donated his frequent flyer miles to help us build the prototype together. With that, I went to South Africa for the first time last November, so it had been a little over a year into the project until I met Richard in person.

DT: Why did you decide to 3D print the hand? 

Owen: Before last year, I didn’t really know anything about 3D printing, but we explored ways to provide [the robohand] at no costs to users. A friend of mine suggested MakerBot, and they sent us two machines for us. Ultimately, 3D printing gives us the ability to use small-scale production – the plastic is very low cost, strong, and lightweight.

DT: Was there a difficult learning curve?

Owen: I’ve found that 3D Printing made a lot more sense than I initially thought it would. I have a background in computer programming and industrial automation from my past work, so I used an open-source program to help design. It takes a bit to figure out the scripting, but it’s really just a process of manipulating the 3D form. As long as you design your files correctly, they print quite well. The main challenge is figuring out the best layout to correctly orient the object so you can printing and get the max amount of strength. 

Ivan Owen and Richard Van As Robohand
Richard Van As (left) and Ivan Owen (right) working in South Africa. Image used with permission by copyright holder

DT: Why have you chosen not to monetize on the robohand?

Owen: I used to work in medical reception. From my experience, I found it to be very frustrating that insurance does not cover everything. High costs of medical services make it hard for people to gain access. Richard is the example of that – he lost his fingers and the prosthetics he looked into cost so much that it was impossible for him to obtain them. If we can find a way to make it more accessible, we should to make it more freely available. We want to provide something that adds functionality to one’s body and improves quality of life. 

DT: It’s pretty wild that one YouTube clip brought this collaboration together, huh?

Owen: It’s unreal the age of tech right now! People around the globe can communicate with each other for free, and a child in South Africa can get a mechanical hand despite his family’s income. Technology makes to easier for people to jump in and solve problems without a lot of money. 

DT: We’re curious: How exactly does the robohand work and what was the inspiration behind it?

Owen: We did a lot of research about tech in the 1800s that used a series of cables and pulleys to activate movements. Essentially, the robohand can recognize muscle movements under the back of one’s hand and uses the pulleys to flex the 3D-printed fingers. We started the prototype for Richard and figured a system for him (Richard can now type with his robohand). The initial purpose of my trip to South Africa was to finalize a design for his hand, then we found Liam days before I left. 

The design process for Liam was much shorter – we applied what we learned for Richard’s hand to customize a system for him. We also didn’t have 3D printers when the project began, so having them now definitely accelerated the version for Liam.

DT: What was it like when you first saw Liam using the robohands?

Owen: It was pretty incredible. The moment that struck the most was when Liam realized how the prototype worked and shouted, “It copies me!”

DT: Liam is only going to get bigger, so where do you go from here?

Owen: Our goal is we’d like to keep in touch with him so we can increase the size of the components as he grows. The end goal is for him to either teach his therapist and parents how to do the fitting, and we want to continue to see how he adapts to the hand. This way ,we can figure out what improvements can be made and how one can use the robohand can express themselves just like anyone could.

Natt Garun
An avid gadgets and Internet culture enthusiast, Natt Garun spends her days bringing you the funniest, coolest, and strangest…
AI can’t tell if you’re gay or straight, but it thinks it knows what both look like
AI knows it shouldn't judge a face, but apparently, drawing one is a different story.
Emilia Clarke AI generated stock image. Gemini / Nano Banana is on the left

We've all been told not to judge a book by its cover, and you'd think AI would follow that rule, too. Ask an AI chatbot to guess someone's sexual orientation just by looking at their face, and it'll likely tell you that there's no reliable way to know. But what happens when you ask that same model to change someone's appearance to match a particular sexual orientation? Well, that's where things get uncomfortable.

A new study, accepted for presentation at the 2026 Conference on Empirical Methods in Natural Language Processing, found that AI models from OpenAI and Google can be inconsistent when handling sensitive personal characteristics. They might refuse to make assumptions about someone based on their appearance, but when asked to generate those same assumptions visually, the results tell a very different story.

Read more
A clinical study with Google’s special chatbot shows a strong future for AI in healthcare
Google’s medical AI could give doctors a useful second set of eyes
Google Articulate Medical Intelligence Explorer chatbot

AI is a useful tool for handling many tasks in private as well as professional settings, but medical advice, especially diagnosis, is one area where I generally draw the line. General-purpose chatbots tend to sound confident and convincing while giving medical advice, even when they are wrong, as studies have previously found.

That being said, Google's new research points to a much more convincing use for AI in healthcare. Its Articulate Medical Intelligence Explorer chatbot, or AMIE for short, could help prepare both sides before the appointment even begins.

Read more
Relaxation music had one job in this pain study, and favorite songs did it better
Patients who chose their music reported less pain after an IV insertion
Book, Publication, Indoors

Patients’ favorite songs helped ease pain after an IV insertion in a new study, while music specifically chosen for relaxation didn’t show a significant benefit. The soothing soundtrack could apparently use a second opinion.

Researchers at University Hospital Zürich studied 204 patients receiving an IV cannula before an MRI scan. Those listening to their chosen music reported less pain 30 seconds and two minutes after insertion. Across the full sample, the clearest relief came after the needle went in.

Read more