For two graduate students at Grand Valley State University, named Joseph Kissling and Samuel Brooks Schaefer, 3D printing not only was a means to complete an assignment for their medical device design course, but it was also a way in which they could make a huge difference in the life of a little girl named Lylah.

Alex Czech has released files for his expanded hand project, now a full 3D printed exoskeleton arm.  The creator says he is now one step closer to the exoskeleton suit worn by Matt Damon’s character in the science fiction film Elysium.

The Victoria Hand Project (VHP) designs and develops low-cost, highly functional, easily manufactured, upper-limb, 3D printed prostheses (3D-PP). We use advanced, yet cost effective tools such as 3D printing and 3D laser scanning, to create our devices.

3D Print reports that a Reddit Group has been working on a 3d printed arm prosthesis that can be used for weightlifting.

Thanks to University of Central Florida aerospace engineering student Albert Manero, Alex has just become the recipient of the world's first ever 3D-printed myoelectric prosthetic arm.

Limbitless Solutions, a non-profit which provides 3d printed prosthetics to children, has created a new custom arm which was delivered by a Dolphin.

Amos, a young boy from Uganda was helped by Dr. Elizabeth Langran who brought the case to Marymount University. Amos from Arlington Academy of Hope received the prosthetic arm several years later when his real arm was torn off by an animal.

After meeting a horrible accident with a train, James Young, 22 year-old from london, lost his arm just to get a bionic arm for himself. This 4.5kg Cyborg arm, inspired from character Snake of game Metal Gear Solid, is multi-function with some being as battery power at backpack, mood lightings and laser torch.

Morriston Hospital in Swansea is testing a revolutionary and attracting looking new Splint to help people with damaged brachial plexus causing paralysis, by connecting the spine to the upper limbs. This research project is the result of Mr.Lloyd, surgical design expert Dominic Eggbeer and 26-year-old patient Tom Wheeler and is being trialed by kickboxing champ Leif Thobroe.

Emelie Strömshed from School of Engineering at Lund University in Sweden, has developed a step-by-step process to combine prosthetic arm socket CAD data with 3D scan data of a patients residual limbs to create perfectly fitting 3D printed prosthetic arm sockets. This process is intended to guide prosthetist without requiring extensive experience in CAD and also allows socket to be adopted for passive and active myoelectric prostheses.

NY based Create Prosthetics created the first ever medical-grade 3D Printed arm prosthetic which was delivered to a young Haitian mother by Jeff Erenstone. The 20 year old Haitian mother, Danis Exulise had lost her hand after being trapped under rubble of earthquake in 2010. The arm weighs 2 pounds and Create Prosthetics now seek North America for selling these arm kits.

Alfie from Ballynahinch in Co. Down was born without his right hand when Megan Tissington from Dublin designed the robotic arm for him as part of her final year project at The National College of Art and Design. The project is called “aumentarM” which is a 3D printed arm and hand system for children aged between four and 12 years.

Team UnLimibited has launched its Alfie Edition Arm 2.0 which is a modification of its previous version, the Isabella Edition which had issues with growing anatomy of children and hence its proportionality with user. They have currently hosted the files on Thingyverse through Customizer and are expecting the global users to provide them feedback on the new launch.

Mir Bayyaan Baloch, a kid from Pakistan was born with a partially developed arm when engineers at Bioniks, Bayyaan decided to present him 3D printed prosthetic arm. The 3D Printed Prosthetic Arm took 2-3 days to print which was added with his favourite "Super Hero" touch and Bayyaan could now move his fingers with the help of his elbow movement and hold things

Prashant Gade, a maker from Pune, India met a 5-year old girl who was missing both of her arms from the elbows down and he created Bio_Nick, a 3D printed electronic prosthetic arm actuated by signals from the foot for her. Motivated by the cause, Gade launched an Indiegogo Campaign with the goal of raising $150,000 and create more prosthetics for the children having similar difficulties in life.

Italian Startup Youbionic was founded by Federico Ciccarese, and they have come up with a newer version of their Youbionic arm that is a Robotic Arm made of 3d printing and designed to perform all movements that a human Arm can accomplish. The arm is 3D printed out of PLA and uses Actuonix Linear Actuators. The company has rolled out the 3D Print Files of the arm for $149 and files for hand for $99 with hopes to fund his team’s further development.