Folding Drone Arm Hinge

Create a parametric, aerospace-grade folding drone arm hinge assembly consisting of a chassis clevis bracket and an interlocking arm knuckle, designed around an oblique pivot axis and neutral-axis cable channel. 1. Chassis Mounting Bracket: - Base plate: 40mm length x 28mm width x 3.5mm thickness with four counterbored M3 screw holes (3.2mm diameter, 6mm counterbore depth 1.5mm) positioned 5mm from corners. - Dual parallel clevis ears extending upward from the base, spaced 11.0mm apart, ear thickness 4.5mm, overall height 18mm with semi-circular rounded tops (radius 5.5mm). - Internal lower stop shelf positioned between the ears to act as a solid mating floor at the 140-degree deployed limit. 2. Oblique Hinge Axis (Tilted Pivot Vector): - Bore a 4.0mm through-hole through both clevis ears, oriented with a 4.5-degree incline toward the chassis center plane off the vertical Z-axis, creating a downward wedging action upon deployment. 3. Rotating Arm Knuckle: - Knuckle body: 10.6mm wide cylinder (radius 7mm) designed to fit inside the 11.0mm clevis ear pocket with 0.2mm clearance per side. - Concentric 4.0mm pivot pin hole sharing the 4.5-degree inclined axis. - Lower contact shoulder profile that seats flush against the chassis stop shelf when swung into the deployed position. - Detent feature: Cut a 1.2mm radius semi-circular locking notch into the outer radial face of the knuckle aligned with the full deployment stop. 4. Arm Socket & Torsional Wiring Chute: - Extruding outward from the knuckle is a cylindrical arm collar 30mm long with an outer diameter of 16mm and an inner bore of 12mm (for carbon fiber tube insertion).

Parameters

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