PROSTHETIC FINGERTIP
PERSONAL PROJECT
NOVEMBER 2019
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Summary + Context
Summary + Context
I designed a prosthetic fingertip for a model airplane hobbyist who lost theirs to a propeller strike. I took photos and caliper measurements of the stump and modeled and 3D printed a few iterations of a replacement fingertip. I also created and tested multiple sizes to ensure a snug fit.
TABLE OF CONTENTS
Skills Used
Skills Used
CAD, 3D printing
Project Photos
Project Photos
Version 1. This was my first attempt at the fingertip. It did not need to actuate (it was more of a cosmetic feature) so it was all printed in one component.
Version 2. The first version fit well, but it extended too far, covering the joint and preventing motion. I attempted to make the design more compact in this version.
Version 3. After wearing the prosthetic, it seemed that shortening the sheath made the fingertip too easy to slide off. I once again extended the design, but incorporated a geometry that would avoid covering the top of the joint, allowing smoother actuation.
Measuring the radius of the finger.
Measuring the length of the middle phalanx of the finger.
Measuring the length of the fingertip of the other hand to ensure symmetry.
Printing the final design.
Unfortunately, I do not have a photo of the final printed version nor hobbyist wearing the fingertip. I finished this project in 2019 before I began recording projects in detail, so these are the most photos I was able to find saved. I also gave the designs to the hobbyist, so I no longer have them. If I find more photos, I will update this page.
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