pdf-page/gemini-3.6-flash / tier-4-gp2y0a21yk

添付されたデータシート（Sharp GP2Y0A21YK0F 測距センサ）に基づいてモデリングした OpenSCAD コードです。

指定された条件に従い：
- 単位：**mm**
- 原点 $(0,0,0)$：**本体中心**
- 方向：**取付面・基板・コネクタ側を $-Z$ 方向、光出射（レンズ面）を $+Z$ 方向**

```openscad
// Sharp GP2Y0A21YK0F Distance Measuring Sensor
// Units: mm
// Origin: Center of main body
// Orientation: +Z = Lens (Optical output), -Z = Mount / PWB / Connector

$fn = 32;

// Color Definitions
case_color = [0.18, 0.18, 0.20];       // Black Carbonic ABS
lens_color = [0.15, 0.12, 0.20, 0.85]; // Dark Tinted Acrylic Lens
pwb_color  = [0.55, 0.35, 0.15];       // Brown Paper Phenol PWB
conn_color = [0.90, 0.90, 0.85];       // Off-white Connector Plastic
pin_color  = [0.85, 0.75, 0.30];       // Gold/Brass Pins

module gp2y0a21yk0f() {
    // Dimensions from datasheet
    total_length   = 37.0;
    hole_pitch     = 29.5;
    hole_dia       = 3.2;
    ear_radius     = 3.75;
    ear_thick      = 1.5;
    
    body_width     = 13.0;
    body_length    = 21.6;
    case_depth     = 6.3;
    
    lens_pitch     = 20.0;
    lens_bezel_h   = 8.4;
    lens_bezel_th  = 2.0;
    lens_dia       = 7.2;

    pwb_thick      = 1.2;
    conn_width     = 10.1;
    
    // --- 1. Main Black Carbonic ABS Case ---
    color(case_color) {
        difference() {
            union() {
                // Main body block
                translate([0, 0, 4.3])
                    cube([body_length, body_width, case_depth], center=true);

                // Mounting ears (Flange)
                translate([0, 0, 0.4])
                    hull() {
                        translate([-hole_pitch/2, 0, 0]) cylinder(r=ear_radius, h=ear_thick, center=true);
                        translate([ hole_pitch/2, 0, 0]) cylinder(r=ear_radius, h=ear_thick, center=true);
                        cube([body_length, body_width, ear_thick], center=true);
                    }

                // Front Lens Bezel (protrusion)
                translate([0, 0, 8.45])
                    hull() {
                        translate([-lens_pitch/2, 0, 0]) cylinder(d=lens_bezel_h, h=lens_bezel_th, center=true);
                        translate([ lens_pitch/2, 0, 0]) cylinder(d=lens_bezel_h, h=lens_bezel_th, center=true);
                    }

                // Rear Connector Housing Structure
                translate([0, -1.2, -4.0])
                    cube([14.75, 9.5, 7.3], center=true);
            }

            // Mounting Screw Holes
            translate([-hole_pitch/2, 0, 0]) cylinder(d=hole_dia, h=10, center=true);
            translate([ hole_pitch/2, 0, 0]) cylinder(d=hole_dia, h=10, center=true);

            // Lens Recesses
            translate([-lens_pitch/2, 0, 8.45]) cylinder(d=lens_dia, h=3, center=true);
            translate([ lens_pitch/2, 0, 8.45]) cylinder(d=lens_dia, h=3, center=true);
        }
    }

    // --- 2. Acrylic Lenses (Light Emitter & Detector) ---
    color(lens_color) {
        for (x = [-lens_pitch/2, lens_pitch/2]) {
            translate([x, 0, 8.1])
                intersection() {
                    translate([0, 0, -2]) sphere(r=4.5);
                    cylinder(d=lens_dia, h=2.0, center=true);
                }
        }
    }

    // --- 3. Paper Phenol PWB ---
    color(pwb_color) {
        translate([0, -1.0, -1.0])
            cube([27.0, 11.0, pwb_thick], center=true);
    }

    // --- 4. 3-Pin Connector (JCTC 12001W90-3P-HF) ---
    color(conn_color) {
        translate([0, -3.2, -6.6])
            difference() {
                cube([conn_width, 5.8, 5.8], center=true);
                translate([0, 0, -1.0]) cube([8.5, 4.2, 5.0], center=true);
            }
    }

    // --- 5. Connector Pins ---
    color(pin_color) {
        for (x = [-2.5, 0, 2.5]) {
            translate([x, -3.2, -6.5])
                cube([0.5, 0.5, 4.5], center=true);
        }
    }
}

// Render Sensor Model
gp2y0a21yk0f();
```