Fully 3D Printed Finger Prosthesis

This project explores the design of a fully 3D-printed finger prosthesis fabricated as a single monolithic component.

The entire kinematic system — joints, pivots and structural supports — is integrated directly into the print, eliminating cables, external hinges or post-assembly components.

The goal was to develop a low-cost, accessible and mechanically elegant prosthetic solution optimized for FDM fabrication.

All you need is a 3DPrinter and 12 grams of filament.

It is designed to use PETG but it can be also printed in PLA.

You can use the 0.4 nozzle or the 0.2 for a smoother result.

Download the .stl file and put it in your slicer, if use BambuStudio slicer there is the .3mf file with the right support settings already uploaded.

Open the file and check that the finger is 45 degrees inclined on z axis

Chek the parameters that you see in the red circles.

Slice and 3d print.

If you have time it is recomended to set your 3dprint velocity on 50% than usual.

After the print just remove all the supports with the help of a tweezers