Compliant Pliers — Living Hinge

Flexure Mechanism • btGeneric6DofSpringConstraint • Raycaster Drag • Fatigue Viz • Stress Test • OBJ / GLB / STL

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Plier Geometry

Handle Length (mm) 80

Handle Width (mm) 12

Handle Thick (mm) 6

Jaw Length (mm) 35

Jaw Taper 0.4

Hinge Width (mm) 3

Hinge Thickness (mm) 1.0

Material Polypropylene

Flexure Physics

Spring Stiffness (k) 5.0

Spring Damping 0.3

Angular Limit (°) 25

Fatigue Limit (cycles) 500

Handle Mass (kg) 0.05

Gravity 9.81

Stress Test

Oscillation Freq (Hz) 5

Oscillation Amp (°) 20

Compliant Plier — 3D

θ: 0.0° • F: 0.00 N • Cycles: 0

Click & drag handles to squeeze

Live Metrics

Spring Force (F = −kθ)

0.00 N

Flexure Angle

0.0°

Material Fatigue

0 %

Safe

Failure

Hinge healthy — no fatigue detected.

Specifications

Handle	—
Jaw	—
Hinge	—
Material	—
k (stiffness)	—
Limit Angle	—
Cycles Run	0
Max θ Reached	0°
Exceeded Limit	0 times

Reference

Living Hinge: Thin flexure connects two halves
Compliant: Motion via elastic deformation, not joints
F = −kθ: Restoring torque proportional to deflection
Fatigue: Cyclic loading degrades hinge over time
PP Hinge: Survives 1M+ cycles at small angles

Export

Ready. Build plier and drag handles to squeeze.