Wrist-Controlled Prosthetic Hand

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Bounding box: 110 × 90.4 × 204.6 mm
Engine: 3D Printing B-rep
Parameters: 23
Published: November 10, 2026

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The prompt

allow a mechanism to attach rubber bands in the back of the hand for tension so that when the hand closes it can open back up

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
Band hook post diameter	4 mm	3 – 8
Band hook post height	10 mm	5 – 16
Anchor bar thickness	6 mm	4 – 10
Anchor bar end inset	12 mm	6 – 30

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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