3D Prosthetic foot

This is a modular prosthetic foot, a fully 3D printable prosthetic foot, using modular architecture principles.The design is open source and you can download, test it and improve it.

DISCLAIMER: Be careful and DO NOT use it without help of a prosthetit, although in the video the amputee performed a gait test using the prosthetic foot, it is still a prototype and current 3D printing materials will probably fail after a couple of uses (because of the fatigue stress), I used ABS but you could test it with PC, nylon-carbon fiber, ULTREM or other to verify.

To assembly the prosthetic foot, you need:

3D printed parts:
Keel
Sole
Top x2

Non-3D printed components:
1 or 2 spring for the heel component
4 x M4 bolts (40mm length) and nuts for assembly the pyramid adapter and the keel
2 x M5 bolts (20mm length) and nuts for assembly the bottom of the springs to the sole
2 x M4 bolts (20mm length) and nuts for assembly top of the springs to the keel
1 x M6 bolt (20mm length) an