pdf-page/gemini-3.1-flash-lite / tier-4-gp2y0d413k

```openscad
// GP2Y0D413K0F Sensor Model
// Coordinate System: Origin is center of the main body
// +Y: Forward (Lens direction), +Z: Up, +X: Right

$fn = 32;

module GP2Y0D413K0F() {
    // Dimensions
    main_w = 29.45;
    main_h = 13.5;
    main_d = 7.1; // Thickness of the main body block
    
    lens_case_w = 20.8;
    lens_case_h = 8.4;
    lens_case_d = 2.0;
    
    pwb_w = 29.45;
    pwb_h = 3.3;
    pwb_d = 1.2;
    
    // 1. Main body case
    color("gray")
    translate([0, -main_d/2, 0])
        cube([main_w, main_d, main_h], center = true);
    
    // 2. Lens case
    color("black")
    translate([0, -main_d/2 - lens_case_d/2, 0])
        cube([lens_case_w, lens_case_d, lens_case_h], center = true);
        
    // 3. Lenses
    // Light emitter (Left, center is -7.6 from center of unit)
    // Based on drawing: center to emitter = 4.5 from left edge? 
    // Actually, center is (-29.45/2 + 4.5) = -10.225 from center
    color("darkgray")
    translate([-10.225, -main_d/2 - lens_case_d, 0])
        rotate([90, 0, 0])
        cylinder(r = 2.5, h = 0.5);
        
    // Light detector (Right, center is 19.7 from emitter center)
    color("darkgray")
    translate([-10.225 + 19.7, -main_d/2 - lens_case_d, 0])
        cube([4.0, 0.5, 3.0], center = true);
        
    // 4. PWB
    color("green")
    translate([0, -main_d/2 + 1.0, -main_h/2 - pwb_d/2])
        cube([pwb_w, pwb_h, pwb_d], center = true);
        
    // 5. Connector
    color("white")
    translate([0, -main_d/2 + 1.0, -main_h/2 - pwb_d - 1.5])
        cube([10.1, 3.0, 3.0], center = true);
}

GP2Y0D413K0F();
```