"Pinky Partner" Prosthetic 6th Finger 3D printable model by SantoneSupply

"Pinky Partner" Prosthetic 6th Finger

Source: Thingiverse by SantoneSupply

The "Pinky Partner" Prosthetic 6th Finger is a free printable 3D model from Thingiverse by SantoneSupply. Update: V2 tweaks the design to improve comfort and stability, while also being lower-poly. You can download the STL file from the original listing below and print it at home.

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30 saves Source: Thingiverse Updated 2026-06-15

Tags: "Pinky, Partner", Prosthetic, 6th, Finger

About this model

Update: V2 tweaks the design to improve comfort and stability, while also being lower-poly. I'm (slowly) working on V3, which will feature multiple axes of motion. ----------- When I was a kid, I read that humans were evolving a sixth finger next to the pinky. I have no idea whether that's true or not, but the idea stuck in my head. What would it be like to have another finger? How could that be useful? So here's a sixth finger, based almost entirely on Gyrobot's excellent Flexy-Hand design ( The design is based on a finger from Flexy-Hand's right hand, but the Pinky Partner can be worn effectively on either hand (see pics). To create this, go to the Flexy-Hand page and download files RH 5-1, RH 5-2, RH 5-3, and Ring Pull. Print those from PLA or whatever rigid filament you prefer. Then do…

Frequently asked questions

Is this 3D model free to download?
Yes. "Pinky Partner" Prosthetic 6th Finger is free to download from Thingiverse. Click the "Download free STL" button above to open the original listing.
Where is the STL hosted?
The download is hosted by Thingiverse, not by Thinger. We link you directly to the original listing by SantoneSupply.
Who made this model?
Designed by SantoneSupply, published on Thingiverse. Please credit the creator when sharing your print online.
Can I print this at home?
Yes. This model is intended for home FDM and resin 3D printers. Check the original listing for suggested print settings like layer height and supports.

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