Simplified ROV Carapace Shell

// Elite Marine Engineer & OpenSCAD Specialist Mode // Target: Unibody ROV Carapace Shell. Perfect compile, no warnings. // 1. DIMENSIONS & WALLS // Bounds: X=320mm, Y=240mm, Z=90mm. Wall=4mm uniform. // Rule: Do not use minkowski(). Use an offset subtraction loop to keep a 4mm wall profile. // 2. BIOMIMETIC HYDRODYNAMICS (Sea Turtle Carapace) // Front: Smooth, sweeping rounded entry nose. // Mid: Domed dorsal ridge flowing to wide wing-like lateral fairings. // Rear: Aggressive narrow tail taper pulling tightly inward to collapse the wake cleanly. // Surface: Fully continuous via hull() loops; zero boxy steps or sharp edges. // 3. 8-THRUSTER PROPULSION MATRIX (6-DOF) // Spec: Bore ID=44mm, Wall=4mm (OD=52mm). Smooth bell-mouth flares on all ports. // Z-Axis (4x): Vertical tunnels nested fully inside hull using intersection() with carapace. Zero side-bulging. // X-Y Vectors (4x): Symmetrical perimeter mounts. Front rotated at 45° and -45°. Rear rotated at 135° and -135° to blow exhaust wake outward, clearing the tapered tail completely. Match translation/rotation exactly in additive & subtractive blocks. // 4. PORTS & DRAINS // Nose: Circular 60mm camera viewport sliced horizontally through center. // Tail: Stacked on Y=0. Top = 22mm tether port (Z+15). Bottom = 16mm power port (Z-15). // Floor: Linear drainage slot matrix for rapid water evacuation. // 5. SYNTAX RULES // $fn=60; at top. Fully populate all vector arrays. Group additives under union() before difference(). Use eps=0.05 for clean manifold cuts.

Parameters

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.