pdf-page/gemini-3-flash / tier-4-gp2y0d413k

```openscad
/*
  Sharp GP2Y0D413K0F Distance Sensor
  Modeled based on Outline Dimensions (Datasheet Page 2)
  
  Coordinates:
  - Origin (0,0,0) is the center of the main body block.
  - +Z: Up (Connector is at the bottom)
  - +Y: Front (Lens side)
  - +X: Right
*/

$fn = 32;

// --- Dimensions (mm) ---
BODY_W = 29.45;
BODY_H = 13.5;
BODY_D = 7.1;

LENS_CASE_D = 6.3; // (6.3) from front surface
LENS_CASE_H = 8.4;
LENS_CASE_W = 26.5; // Estimated from front view

LENS_EMITTER_X = -BODY_W/2 + 4.5;  // *4.5 from left edge
LENS_DETECTOR_X = LENS_EMITTER_X + 19.7; // *19.7 center to center
LENS_H = 7.2; // From side view height of opening

PWB_T = 1.2;
PWB_D = 7.1 + 3.3; // Body depth + (3.3) reference for connector protrusion
PWB_OFFSET_Y = -3.3 / 2; // Shifted towards back

CONN_W = 10.1;
CONN_H = 18.9 - BODY_H - PWB_T; // Total height 18.9 minus body and PWB
CONN_D = 5.0; // Simplified depth

// --- Colors ---
COLOR_CASE      = [0.15, 0.15, 0.15]; // Carbonic ABS (Dark Grey/Black)
COLOR_LENS_WIN  = [0.2, 0.05, 0.1, 0.8]; // IR Filter (Dark Reddish Translucent)
COLOR_PWB       = [0.5, 0.4, 0.2];    // Paper Phenol (Brownish)
COLOR_CONN      = [0.9, 0.9, 0.8];    // White/Beige Connector

// --- Modeling ---

// 1. Main Body Case
color(COLOR_CASE)
cube([BODY_W, BODY_D, BODY_H], center=true);

// 2. Lens Case Protrusion
translate([0, BODY_D/2 + LENS_CASE_D/2, 0])
color(COLOR_CASE)
cube([LENS_CASE_W, LENS_CASE_D, LENS_CASE_H], center=true);

// 3. Emitter Lens (Round window, Left)
translate([LENS_EMITTER_X, BODY_D/2 + LENS_CASE_D - 0.5, 0])
rotate([90, 0, 0])
color(COLOR_LENS_WIN)
cylinder(h=1, d=6, center=true);

// 4. Detector Lens (Rectangular window, Right)
translate([LENS_DETECTOR_X, BODY_D/2 + LENS_CASE_D - 0.5, 0])
color(COLOR_LENS_WIN)
cube([8, 1, LENS_H], center=true);

// 5. PWB (Printed Wiring Board)
translate([0, PWB_OFFSET_Y, -BODY_H/2 - PWB_T/2])
color(COLOR_PWB)
cube([BODY_W, PWB_D, PWB_T], center=true);

// 6. 3-Pin Connector (JCTC 12001W90-3P-HF)
// Simplified as a block with 3 pins
translate([0, 0, -BODY_H/2 - PWB_T - CONN_H/2]) {
    color(COLOR_CONN)
    cube([CONN_W, CONN_D, CONN_H], center=true);
    
    // Tiny pins simplified
    for(i = [-1 : 1]) {
        translate([i * 2, 0, -CONN_H/2 - 1])
        color("silver")
        cube([0.5, 0.5, 2], center=true);
    }
}
```