My work with Ayúdame3D has lent me new insight on challenges that people using prosthetics face - and how we can work to overcome them. One specific task I have focused on the last two weeks is developing, 3D modeling, and 3D printing a simple but effective way for users to bend their prosthetic wrist inward. Before, the only way to change the angle of the hand relative to the wrist required using a screwdriver. Working with Fusion360, and with the help of Ayúdame's skilled team, I was able to develop a spring loaded solution to the problem. The key to solving this problem involved changing the initial circular method of wrist attachment, which utilized a glued pin that went through through a hole in the wrist and a matching hole in the hand, to a hexagonal design. The new hexagonal pin, which connects the wrist piece and the hand piece, can't be turned when the spring is at full extension (not compressed at all). Thus, neither can the hand, locking it in place. However, the hand can be turned to a new angle when the spring connecting the two parts of the axle is compressed. This is because when the axle is compressed, a smaller circle comes to take the position of the hexagon, allowing for the hand to rotate around it. Only when the hand and axle have been rotated 60 degrees, which is when the hexagon matches its profile hole, can the spring extend again, locking the hand in its new position. The design will only require one hand when the wrist piece is actually attached to the user's body. This challenge gave me the opportunity to improve my skills with CAD (Fusion360) and 3D printing. I enjoyed being able to get familiar with the tools professionals use all day, and hope that the next version of this design comes out even stronger! Sorry about the print on the hand piece -- I completely forgot to add supports during printing 😅 . Next time.
I just have to say you are a genius. Can you imagine the amount of improvement to peoples quality of life you just did??!!! 👏👏👏Well done
Put that same ide on door hinges and it will be great.
Tremendous. Love what you are learning and developing, and the incredible potential it has to improve people’s lives.
Ayúdame3D
2w
It's great to have you on the team! Looking forward to the next developments! 💙
Daniel Roth
2w
Jack, this is so cool! An elegant solution to the lack of wrist rotation for people who are using these prosthetics.
This is incredible, Jack! Keep sharing your findings! ✨
Very cool!
Brilliant work Jack
BA in Computer Science and Economics at Northwestern University
2wWow! This is amazing Jack, awesome work! Keep it going brother!