Hand crank 3D Models

Find the best Hand crank 3D Models, free download in STL, FBX, GLB, OBJ, 3MF, USDZ for 3D modeling and creation in Blender, 3D printing, game developing, animation, eCommerce, AR/VR and etc. Generated by Tripo AI 3D Generator.

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Complete Detailed Description: Hand-Crank Gear-Multiplier Generator

1. WOODEN FRAME (Housing Structure)
PropertySpecificationMaterialPlywood (12mm thickness)Dimensions50cm (W) × 50cm (D) × 100cm (H)Total Volume0.25 m³ ✅Surface FinishSanded smooth, painted or varnishedColorDark walnut stain or matte blackJointsWood screws + wood glueBase4 rubber feet for stabilityWeight~8–10 kg assembled

2. HAND CRANK (Input Mechanism)
PropertySpecificationMaterialSteel rod with rubber grip handleHandle Diameter25mm (comfortable grip)Crank Arm Length20cm (longer arm = more torque)Rotation Speed (human)~60–80 RPM comfortablyShaft Diameter10mm steel rodBearing TypeBall bearing (608ZZ) for smooth rotationConnectionBolted to input gear axle

3. GEAR SYSTEM (Speed Multiplier)
PropertySpecificationTypeSpur gear train (3-stage)MaterialNylon or ABS plastic gearsStage 1 Ratio1:3 (large to small gear)Stage 2 Ratio1:3Stage 3 Ratio1:3Overall Gear Ratio1:27 (input 80 RPM → output ~2,160 RPM)Input Gear Teeth60 teethOutput Gear Teeth~20 te

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