Everything else
Wrist-Controlled Prosthetic Hand
- Bounding box
- 110 × 90.4 × 204.6 mm
- Engine
- 3D Printing B-rep
- Parameters
- 19
- Published
- November 10, 2026
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Free to download and use. See the terms.
The prompt
a prosthetic hand that is controlled at the wrist. It uses strings to pull the hand closed and should have a firm enough grip to lift a small object.The intended users are people who have lost their hand. Anyone who doesn’t have full control of their hand. Should help the user perform basic functions such as gripping objects and lifting smaller objects It should be used in everyday appliances Size should be the size of the average adult. Should remain as light as possible. Strings act like artificial tendons. When the strings are pulled at the base, the hand begins to curl inward like a grabbing motion. Most of the hand is manufacturable except for the string which acts as the tendons. Fishing line is something commonly used so that is a cheap viable option. As for the main parts and components it can all be 3d printed. make a wrist controlled prosthetic hand that uses string to pull fingers closed, our design is focused on being light weight while also being able to lift small objects and be durable enough for repeated use.
Parameters
| Name | Value | Range |
|---|---|---|
| Palm width | 90 mm | 70 – 120 |
| Palm length | 95 mm | 75 – 130 |
| Palm thickness | 25 mm | 15 – 35 |
| Wrist cuff inner diameter | 80 mm | 65 – 110 |
| Wrist cuff length | 40 mm | 25 – 60 |
| Thumb length | 60 mm | 45 – 80 |
| Thumb width | 20 mm | 14 – 26 |
| Index finger length | 75 mm | 60 – 95 |
| Index finger width | 18 mm | 13 – 22 |
| Middle finger length | 80 mm | 65 – 100 |
| Middle finger width | 18 mm | 13 – 22 |
| Ring finger length | 75 mm | 60 – 95 |
| Ring finger width | 17 mm | 12 – 21 |
| Little finger length | 60 mm | 45 – 80 |
| Little finger width | 15 mm | 10 – 20 |
| Tendon line diameter | 1.4 mm | 1.2 – 1.5 |
| Tendon line length | 350 mm | 300 – 500 |
| Return spring diameter | 6 mm | 5 – 15 |
| Tendon guide diameter | 6 mm | 4 – 8 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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