BG4122 / GROUP 1MECHANISM STUDY · 32 SEC

FOUR FINGERS / EIGHT PULLERS

Assistance,
one finger
at a time.

Caps anchor. Rings guide.

Split fingertip caps and flexible clip-on rings route separate opening and closing tendons.

Arm takes up slack.

Tension sensors measure the load. Each motor gently takes up its own tendon.

Pull to curl.

Flexion motors wind while opposing extension channels release. Four fingers have independent control.

Pull to open.

Extension motors wind while flexion tendons release. Tendon routing distributes motion across joints.

Rest unwinds.

Local switches work without a phone. Keep a mechanical release and an independent power cut-off.

Flexion tendonExtension tendonPrintable attachment
LOCALSwitches → ESP32 → motors
PHONECamera motion → Wi-Fi targets
LOADTension sensors → local force limits