July 16, 2025
Description
⚠️ Disclaimer: This prosthetic leg design is an experimental prototype and is provided as-is for educational and developmental purposes only. It is not certified, approved, or tested for clinical, medical, or long-term use.
A one-size-fits-all 3D printed leg designed for pre-teens to young adults.
A fully adjustable, 3D-printed, lower limb prosthetic to improve long-term outcomes particularly for children and adolescents living with lower limb loss.
To significantly increase the strength, we swapped out our plastic core with a steel thread core. Also, our aesthetically redesigned shin is now printed from a carbon fiber nylon blend.
Next, let’s move up the leg, to the socket of the prosthesis. Using TPU diamond-slotted flaps laced with a specialized cable and micro-adjustment dial system, you can easily and evenly fit and form the connection to any size or shape with a comfortable and secure attachment.
Now let’s move all the way down to our revamped, dynamically responsive feet. With this new and sporty design, we made sure you can easily swap them out with a different size or density anytime.
Finally, the leg now comes in three sizes, Child, Junior, and Young Adult. Each of which can have the height adjusted, with the goal of accommodating any size from small children to tall adults.
Please note that this 3mf file comes with multiple different sized feet to accommodate different foot sizes. We have provided a 3mf for sizes 3, 5, 7, 9, and 11 called TPU Feet Sizes 3-11. Please print the size that works best for you!
This project requires different materials for different applications within the prosthetic. In order to print this project properly and safely, please print Sr ASA Pieces.3mf, Sr TPU 95A Pieces.3mf, Sr PA6-CF.3mf, and Sr PC Shin Inner.3mf with the material listed in the 3mf title.
For video reference on how to lace, get in and out, and lengthening or shortening your leg, please see the video linked here.
License:
BY-NC