pdf-page/gemini-3.6-flash / tier-4-gp2y0d413k

```openscad
// Sharp GP2Y0D413K0F Distance Sensor Model
$fn = 32;

// Main Body Dimensions
body_w = 29.45;
body_d = 7.1;
body_h = 13.5;

// Lens Case Protrusion Dimensions
lens_case_w = 26.0;
lens_case_d = 2.0;   // Front protrusion (7.1mm body depth + 2.0mm lens protrusion)
lens_case_h = 8.4;

// Lens Positions (referenced from left edge X = -body_w/2)
emitter_x  = -body_w/2 + 4.5;   // *4.5 mm from left
detector_x = -body_w/2 + 19.7;  // *19.7 mm from left

// Lens Window Dimensions
emitter_r  = 3.3;   // Light emitter circular lens radius
detector_w = 7.5;   // Light detector rectangular window width
detector_h = 7.2;   // Light detector rectangular window height

// PWB Dimensions (Bottom)
pwb_w = 29.45;
pwb_d = 7.1;
pwb_h = 1.2;

// Connector Dimensions (JCTC 12001W90-3P-HF)
conn_w = 10.1;
conn_d = 5.0;
conn_h = 4.2;
conn_x = -body_w/2 + 3.75 + conn_w/2; // 3.75mm offset from left

module sharp_gp2y0d413k0f() {
    // Material Colors
    color_case = [0.15, 0.15, 0.15];   // Carbonic ABS (Dark Grey/Black)
    color_lens = [0.20, 0.05, 0.10, 0.85]; // Dark Red Translucent Optical Lens
    color_pwb  = [0.65, 0.45, 0.20];   // Paper Phenol PWB (Brownish)
    color_conn = [0.90, 0.90, 0.85];   // Connector Body (Off-white)
    color_pin  = [0.85, 0.80, 0.20];   // Metallic Pins

    // 1. Main Body Case (Carbonic ABS)
    color(color_case) {
        cube([body_w, body_d, body_h], center=true);
        
        // Front Lens Case Housing
        translate([0, body_d/2 + lens_case_d/2, 0])
            cube([lens_case_w, lens_case_d, lens_case_h], center=true);
    }

    // 2. Lenses (+Y direction / Front)
    color(color_lens) {
        // Left Window: Light Emitter (Circular Lens)
        translate([emitter_x, body_d/2 + lens_case_d - 0.2, 0])
            rotate([-90, 0, 0])
            cylinder(r=emitter_r, h=0.5, center=false);

        // Right Window: Light Detector (Rectangular Lens)
        translate([detector_x, body_d/2 + lens_case_d - 0.2, 0])
            rotate([90, 0, 0])
            linear_extrude(height=0.5)
            square([detector_w, detector_h], center=true);
    }

    // 3. PWB (Printed Wiring Board at bottom)
    color(color_pwb) {
        translate([0, 0, -body_h/2 - pwb_h/2])
            cube([pwb_w, pwb_d, pwb_h], center=true);
    }

    // 4. 3-Pin Connector (JCTC 12001W90-3P-HF)
    translate([conn_x, 0, -body_h/2 - pwb_h - conn_h/2]) {
        color(color_conn) {
            difference() {
                cube([conn_w, conn_d, conn_h], center=true);
                // Inner cavity for connector plug
                translate([0, 0, -0.6])
                    cube([conn_w - 1.2, conn_d - 1.2, conn_h], center=true);
            }
        }
        
        // 3 Pins inside connector
        color(color_pin) {
            for (i = [-1:1]) {
                translate([i * 2.5, 0, 0])
                    cube([0.6, 0.6, conn_h - 0.5], center=true);
            }
        }
    }
}

// Render complete sensor
sharp_gp2y0d413k0f();
```