vibe-openscad

tier-3-butt-hinge / claude-opus-4-20250514

5 run / 累計 120.9s / 累計 $0.6844

claude opus 4 2025-05-14 bare

bare (provider default effort)

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bare render of tier-3-butt-hinge
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success 30.3s · 707/1933t · $0.1556
SCAD (151 lines) 
// Butt hinge parameters
leaf_width = 25;
leaf_height = 30;
leaf_thickness = 2;
pin_diameter = 4;
pin_length = 32;
knuckle_outer_diameter = 8;
knuckle_inner_diameter = 4.6;
knuckle_height = 6;
num_knuckles = 5;

// Screw hole parameters
screw_hole_diameter = 3.2;
countersink_diameter = 6;
countersink_depth = 1;
screw_spacing = 8;

// Pin (centered on Y-axis)
color("Silver")
translate([0, -1, 0])
cylinder(h = pin_length, d = pin_diameter, $fn = 32);

// Left leaf (x < 0)
color("DarkGray")
translate([0, 0, 0])
union() {
    // Flat plate
    translate([-leaf_width, 0, -leaf_thickness/2])
    cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
    
    // Knuckles (positions 0, 2, 4)
    for (i = [0, 2, 4]) {
        translate([0, i * knuckle_height, 0])
        difference() {
            cylinder(h = knuckle_height, d = knuckle_outer_diameter, $fn = 32);
            cylinder(h = knuckle_height, d = knuckle_inner_diameter, $fn = 32);
            // Cut half cylinder
            translate([knuckle_outer_diameter/2, 0, 0])
            cube([knuckle_outer_diameter, knuckle_height, knuckle_height], center = true);
        }
    }
    
    // Screw holes
    for (i = [0, 1, 2]) {
        translate([-leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0])
        difference() {
            cylinder(h = 0.01, d = 0.01); // Dummy for union
            // Countersink
            translate([0, 0, leaf_thickness/2 - countersink_depth])
            cylinder(h = countersink_depth, d1 = screw_hole_diameter, d2 = countersink_diameter, $fn = 32);
            // Through hole
            translate([0, 0, -leaf_thickness/2 - 0.1])
            cylinder(h = leaf_thickness + 0.2, d = screw_hole_diameter, $fn = 32);
        }
    }
}

// Right leaf (x > 0)
color("DarkGray")
translate([0, 0, 0])
union() {
    // Flat plate
    translate([knuckle_outer_diameter/2, 0, -leaf_thickness/2])
    cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
    
    // Knuckles (positions 1, 3)
    for (i = [1, 3]) {
        translate([0, i * knuckle_height, 0])
        difference() {
            cylinder(h = knuckle_height, d = knuckle_outer_diameter, $fn = 32);
            cylinder(h = knuckle_height, d = knuckle_inner_diameter, $fn = 32);
            // Cut half cylinder
            translate([-knuckle_outer_diameter/2, 0, 0])
            cube([knuckle_outer_diameter, knuckle_height, knuckle_height], center = true);
        }
    }
    
    // Screw holes
    for (i = [0, 1, 2]) {
        translate([leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0])
        difference() {
            cylinder(h = 0.01, d = 0.01); // Dummy for union
            // Countersink
            translate([0, 0, leaf_thickness/2 - countersink_depth])
            cylinder(h = countersink_depth, d1 = screw_hole_diameter, d2 = countersink_diameter, $fn = 32);
            // Through hole
            translate([0, 0, -leaf_thickness/2 - 0.1])
            cylinder(h = leaf_thickness + 0.2, d = screw_hole_diameter, $fn = 32);
        }
    }
}

// Apply screw holes to leaves
difference() {
    union() {
        // Left leaf base
        color("DarkGray")
        translate([-leaf_width, 0, -leaf_thickness/2])
        cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
        
        // Right leaf base
        color("DarkGray")
        translate([knuckle_outer_diameter/2, 0, -leaf_thickness/2])
        cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
    }
    
    // Left leaf screw holes
    for (i = [0, 1, 2]) {
        translate([-leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0]) {
            // Countersink
            translate([0, 0, leaf_thickness/2 - countersink_depth])
            cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter, $fn = 32);
            // Through hole
            cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true, $fn = 32);
        }
    }
    
    // Right leaf screw holes
    for (i = [0, 1, 2]) {
        translate([leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0]) {
            // Countersink
            translate([0, 0, leaf_thickness/2 - countersink_depth])
            cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter, $fn = 32);
            // Through hole
            cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true, $fn = 32);
        }
    }
}

// Knuckles
color("DarkGray") {
    // Left leaf knuckles
    for (i = [0, 2, 4]) {
        translate([0, i * knuckle_height, 0])
        difference() {
            translate([-knuckle_outer_diameter/2, 0, 0])
            cube([knuckle_outer_diameter/2, knuckle_height, knuckle_outer_diameter/2]);
            cylinder(h = knuckle_height, d = knuckle_inner_diameter, $fn = 32);
        }
    }
    
    // Right leaf knuckles
    for (i = [1, 3]) {
        translate([0, i * knuckle_height, 0])
        difference() {
            translate([0, 0, 0])
            cube([knuckle_outer_diameter/2, knuckle_height, knuckle_outer_diameter/2]);
            cylinder(h = knuckle_height, d = knuckle_inner_diameter, $fn = 32);
        }
    }
}
パラメータ (13) —
スライダを動かすと openscad-wasm で再レンダリング

prompt

OpenSCAD で、家具用の小型バット蝶番(butt hinge)を作ってください。
3 つのパーツ(左板、右板、ピン軸)が組み合わさって動作する完成品を、
「開いた状態(180°)」で 1 つの SCAD ファイルに配置して出力します。

寸法と配置:
- 板(leaf)2 枚: 30mm × 25mm × 厚さ 2mm の鉄板形状
  - 縦 30mm の辺がピン軸に沿う(ヒンジ軸方向)
  - 横 25mm の辺が回転で開く方向に伸びる
- ピン軸: 直径 4mm の円柱、長さ 32mm(両端 1mm ずつ knuckle から飛び出す)
- knuckle(筒部): 縦 30mm を 5 等分(各 6mm)に区切り、左板に 3 個・右板に 2 個を
  互い違いに配置(左板は外側 2 個 + 中央 1 個、右板は中間 2 個)
- knuckle 外径 8mm、内径はピン軸 + 0.3mm クリアランス(= 4.6mm 穴)
- 左板と右板はピン軸を共有して回転可能。180° 開いた状態で、両板の
  平らな面が同一平面に来るように配置する
- 各板の knuckle から離れた側に、M3 用の皿穴を 3 個ずつ
  (穴ピッチは板の縦方向に 8mm 間隔、皿穴は表面から見て直径 6mm × 深さ 1mm
  のテーパ + 直径 3.2mm の貫通穴)

座標系:
- ピン軸の中心線を Y 軸に重ねる(ピン軸は +Y 方向)
- 板の平らな面は Z 軸に直交し、左板が x<0 側、右板が x>0 側に伸びる(180° 開)
- knuckle は X=0 を中心とし、Y 方向に 6mm ずつ並ぶ

完成したコード全体を ```openscad ... ``` のフェンスで囲んで出力してください。
コードのみで、追加の説明は不要です。

variant: thinking

off (default) success →
off
30.3s · 707/1933t · $0.1556
SCAD (151 lines) 
// Butt hinge parameters
leaf_width = 25;
leaf_height = 30;
leaf_thickness = 2;
pin_diameter = 4;
pin_length = 32;
knuckle_outer_diameter = 8;
knuckle_inner_diameter = 4.6;
knuckle_height = 6;
num_knuckles = 5;

// Screw hole parameters
screw_hole_diameter = 3.2;
countersink_diameter = 6;
countersink_depth = 1;
screw_spacing = 8;

// Pin (centered on Y-axis)
color("Silver")
translate([0, -1, 0])
cylinder(h = pin_length, d = pin_diameter, $fn = 32);

// Left leaf (x < 0)
color("DarkGray")
translate([0, 0, 0])
union() {
    // Flat plate
    translate([-leaf_width, 0, -leaf_thickness/2])
    cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
    
    // Knuckles (positions 0, 2, 4)
    for (i = [0, 2, 4]) {
        translate([0, i * knuckle_height, 0])
        difference() {
            cylinder(h = knuckle_height, d = knuckle_outer_diameter, $fn = 32);
            cylinder(h = knuckle_height, d = knuckle_inner_diameter, $fn = 32);
            // Cut half cylinder
            translate([knuckle_outer_diameter/2, 0, 0])
            cube([knuckle_outer_diameter, knuckle_height, knuckle_height], center = true);
        }
    }
    
    // Screw holes
    for (i = [0, 1, 2]) {
        translate([-leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0])
        difference() {
            cylinder(h = 0.01, d = 0.01); // Dummy for union
            // Countersink
            translate([0, 0, leaf_thickness/2 - countersink_depth])
            cylinder(h = countersink_depth, d1 = screw_hole_diameter, d2 = countersink_diameter, $fn = 32);
            // Through hole
            translate([0, 0, -leaf_thickness/2 - 0.1])
            cylinder(h = leaf_thickness + 0.2, d = screw_hole_diameter, $fn = 32);
        }
    }
}

// Right leaf (x > 0)
color("DarkGray")
translate([0, 0, 0])
union() {
    // Flat plate
    translate([knuckle_outer_diameter/2, 0, -leaf_thickness/2])
    cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
    
    // Knuckles (positions 1, 3)
    for (i = [1, 3]) {
        translate([0, i * knuckle_height, 0])
        difference() {
            cylinder(h = knuckle_height, d = knuckle_outer_diameter, $fn = 32);
            cylinder(h = knuckle_height, d = knuckle_inner_diameter, $fn = 32);
            // Cut half cylinder
            translate([-knuckle_outer_diameter/2, 0, 0])
            cube([knuckle_outer_diameter, knuckle_height, knuckle_height], center = true);
        }
    }
    
    // Screw holes
    for (i = [0, 1, 2]) {
        translate([leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0])
        difference() {
            cylinder(h = 0.01, d = 0.01); // Dummy for union
            // Countersink
            translate([0, 0, leaf_thickness/2 - countersink_depth])
            cylinder(h = countersink_depth, d1 = screw_hole_diameter, d2 = countersink_diameter, $fn = 32);
            // Through hole
            translate([0, 0, -leaf_thickness/2 - 0.1])
            cylinder(h = leaf_thickness + 0.2, d = screw_hole_diameter, $fn = 32);
        }
    }
}

// Apply screw holes to leaves
difference() {
    union() {
        // Left leaf base
        color("DarkGray")
        translate([-leaf_width, 0, -leaf_thickness/2])
        cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
        
        // Right leaf base
        color("DarkGray")
        translate([knuckle_outer_diameter/2, 0, -leaf_thickness/2])
        cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
    }
    
    // Left leaf screw holes
    for (i = [0, 1, 2]) {
        translate([-leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0]) {
            // Countersink
            translate([0, 0, leaf_thickness/2 - countersink_depth])
            cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter, $fn = 32);
            // Through hole
            cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true, $fn = 32);
        }
    }
    
    // Right leaf screw holes
    for (i = [0, 1, 2]) {
        translate([leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0]) {
            // Countersink
            translate([0, 0, leaf_thickness/2 - countersink_depth])
            cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter, $fn = 32);
            // Through hole
            cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true, $fn = 32);
        }
    }
}

// Knuckles
color("DarkGray") {
    // Left leaf knuckles
    for (i = [0, 2, 4]) {
        translate([0, i * knuckle_height, 0])
        difference() {
            translate([-knuckle_outer_diameter/2, 0, 0])
            cube([knuckle_outer_diameter/2, knuckle_height, knuckle_outer_diameter/2]);
            cylinder(h = knuckle_height, d = knuckle_inner_diameter, $fn = 32);
        }
    }
    
    // Right leaf knuckles
    for (i = [1, 3]) {
        translate([0, i * knuckle_height, 0])
        difference() {
            translate([0, 0, 0])
            cube([knuckle_outer_diameter/2, knuckle_height, knuckle_outer_diameter/2]);
            cylinder(h = knuckle_height, d = knuckle_inner_diameter, $fn = 32);
        }
    }
}
adaptivenot run
—
dynamicnot run
—

iteration: iter-png

i1 success →
iter 1
22.7s · 3396/1153t · $0.1374
diff vs bare: +43/-101 
  // Butt hinge parameters
  leaf_width = 25;
  leaf_height = 30;
  leaf_thickness = 2;
  pin_diameter = 4;
  pin_length = 32;
  knuckle_outer_diameter = 8;
  knuckle_inner_diameter = 4.6;
  knuckle_height = 6;
  num_knuckles = 5;
  
  // Screw hole parameters
  screw_hole_diameter = 3.2;
  countersink_diameter = 6;
  countersink_depth = 1;
  screw_spacing = 8;
  
+ $fn = 50;
+ 
  // Pin (centered on Y-axis)
  color("Silver")
  translate([0, -1, 0])
- cylinder(h = pin_length, d = pin_diameter, $fn = 32);
+ cylinder(h = pin_length, d = pin_diameter);
  
  // Left leaf (x < 0)
  color("DarkGray")
- translate([0, 0, 0])
- union() {
-     // Flat plate
-     translate([-leaf_width, 0, -leaf_thickness/2])
-     cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
-     
-     // Knuckles (positions 0, 2, 4)
-     for (i = [0, 2, 4]) {
-         translate([0, i * knuckle_height, 0])
-         difference() {
-             cylinder(h = knuckle_height, d = knuckle_outer_diameter, $fn = 32);
-             cylinder(h = knuckle_height, d = knuckle_inner_diameter, $fn = 32);
-             // Cut half cylinder
-             translate([knuckle_outer_diameter/2, 0, 0])
-             cube([knuckle_outer_diameter, knuckle_height, knuckle_height], center = true);
+ difference() {
+     union() {
+         // Flat plate
+         translate([-leaf_width, 0, -leaf_thickness/2])
+         cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
+         
+         // Knuckles (positions 0, 2, 4)
+         for (i = [0, 2, 4]) {
+             translate([0, i * knuckle_height, 0])
+             difference() {
+                 // Full cylinder
+                 cylinder(h = knuckle_height, d = knuckle_outer_diameter);
+                 // Inner hole
+                 cylinder(h = knuckle_height, d = knuckle_inner_diameter);
+                 // Cut right half
+                 translate([0, 0, -knuckle_height/2])
+                 cube([knuckle_outer_diameter, knuckle_outer_diameter, knuckle_height * 2]);
+             }
          }
      }
      
      // Screw holes
      for (i = [0, 1, 2]) {
-         translate([-leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0])
-         difference() {
-             cylinder(h = 0.01, d = 0.01); // Dummy for union
+         translate([-leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0]) {
+             // Through hole
+             cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true);
              // Countersink
              translate([0, 0, leaf_thickness/2 - countersink_depth])
-             cylinder(h = countersink_depth, d1 = screw_hole_diameter, d2 = countersink_diameter, $fn = 32);
-             // Through hole
-             translate([0, 0, -leaf_thickness/2 - 0.1])
-             cylinder(h = leaf_thickness + 0.2, d = screw_hole_diameter, $fn = 32);
+             cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter);
          }
      }
  }
  
  // Right leaf (x > 0)
  color("DarkGray")
- translate([0, 0, 0])
- union() {
-     // Flat plate
-     translate([knuckle_outer_diameter/2, 0, -leaf_thickness/2])
-     cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
-     
-     // Knuckles (positions 1, 3)
-     for (i = [1, 3]) {
-         translate([0, i * knuckle_height, 0])
-         difference() {
-             cylinder(h = knuckle_height, d = knuckle_outer_diameter, $fn = 32);
-             cylinder(h = knuckle_height, d = knuckle_inner_diameter, $fn = 32);
-             // Cut half cylinder
-             translate([-knuckle_outer_diameter/2, 0, 0])
-             cube([knuckle_outer_diameter, knuckle_height, knuckle_height], center = true);
-         }
-     }
-     
-     // Screw holes
-     for (i = [0, 1, 2]) {
-         translate([leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0])
-         difference() {
-             cylinder(h = 0.01, d = 0.01); // Dummy for union
-             // Countersink
-             translate([0, 0, leaf_thickness/2 - countersink_depth])
-             cylinder(h = countersink_depth, d1 = screw_hole_diameter, d2 = countersink_diameter, $fn = 32);
-             // Through hole
-             translate([0, 0, -leaf_thickness/2 - 0.1])
-             cylinder(h = leaf_thickness + 0.2, d = screw_hole_diameter, $fn = 32);
-         }
-     }
- }
- 
- // Apply screw holes to leaves
  difference() {
      union() {
-         // Left leaf base
-         color("DarkGray")
-         translate([-leaf_width, 0, -leaf_thickness/2])
-         cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
-         
-         // Right leaf base
-         color("DarkGray")
+         // Flat plate
          translate([knuckle_outer_diameter/2, 0, -leaf_thickness/2])
          cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
-     }
-     
-     // Left leaf screw holes
-     for (i = [0, 1, 2]) {
-         translate([-leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0]) {
-             // Countersink
-             translate([0, 0, leaf_thickness/2 - countersink_depth])
-             cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter, $fn = 32);
-             // Through hole
-             cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true, $fn = 32);
+         
+         // Knuckles (positions 1, 3)
+         for (i = [1, 3]) {
+             translate([0, i * knuckle_height, 0])
+             difference() {
+                 // Full cylinder
+                 cylinder(h = knuckle_height, d = knuckle_outer_diameter);
+                 // Inner hole
+                 cylinder(h = knuckle_height, d = knuckle_inner_diameter);
+                 // Cut left half
+                 translate([-knuckle_outer_diameter, 0, -knuckle_height/2])
+                 cube([knuckle_outer_diameter, knuckle_outer_diameter, knuckle_height * 2]);
+             }
          }
      }
      
-     // Right leaf screw holes
+     // Screw holes
      for (i = [0, 1, 2]) {
          translate([leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0]) {
+             // Through hole
+             cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true);
              // Countersink
              translate([0, 0, leaf_thickness/2 - countersink_depth])
-             cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter, $fn = 32);
-             // Through hole
-             cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true, $fn = 32);
+             cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter);
          }
      }
- }
- 
- // Knuckles
- color("DarkGray") {
-     // Left leaf knuckles
-     for (i = [0, 2, 4]) {
-         translate([0, i * knuckle_height, 0])
-         difference() {
-             translate([-knuckle_outer_diameter/2, 0, 0])
-             cube([knuckle_outer_diameter/2, knuckle_height, knuckle_outer_diameter/2]);
-             cylinder(h = knuckle_height, d = knuckle_inner_diameter, $fn = 32);
-         }
-     }
-     
-     // Right leaf knuckles
-     for (i = [1, 3]) {
-         translate([0, i * knuckle_height, 0])
-         difference() {
-             translate([0, 0, 0])
-             cube([knuckle_outer_diameter/2, knuckle_height, knuckle_outer_diameter/2]);
-             cylinder(h = knuckle_height, d = knuckle_inner_diameter, $fn = 32);
-         }
-     }
  }
SCAD (93 lines) 
// Butt hinge parameters
leaf_width = 25;
leaf_height = 30;
leaf_thickness = 2;
pin_diameter = 4;
pin_length = 32;
knuckle_outer_diameter = 8;
knuckle_inner_diameter = 4.6;
knuckle_height = 6;
num_knuckles = 5;

// Screw hole parameters
screw_hole_diameter = 3.2;
countersink_diameter = 6;
countersink_depth = 1;
screw_spacing = 8;

$fn = 50;

// Pin (centered on Y-axis)
color("Silver")
translate([0, -1, 0])
cylinder(h = pin_length, d = pin_diameter);

// Left leaf (x < 0)
color("DarkGray")
difference() {
    union() {
        // Flat plate
        translate([-leaf_width, 0, -leaf_thickness/2])
        cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
        
        // Knuckles (positions 0, 2, 4)
        for (i = [0, 2, 4]) {
            translate([0, i * knuckle_height, 0])
            difference() {
                // Full cylinder
                cylinder(h = knuckle_height, d = knuckle_outer_diameter);
                // Inner hole
                cylinder(h = knuckle_height, d = knuckle_inner_diameter);
                // Cut right half
                translate([0, 0, -knuckle_height/2])
                cube([knuckle_outer_diameter, knuckle_outer_diameter, knuckle_height * 2]);
            }
        }
    }
    
    // Screw holes
    for (i = [0, 1, 2]) {
        translate([-leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0]) {
            // Through hole
            cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true);
            // Countersink
            translate([0, 0, leaf_thickness/2 - countersink_depth])
            cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter);
        }
    }
}

// Right leaf (x > 0)
color("DarkGray")
difference() {
    union() {
        // Flat plate
        translate([knuckle_outer_diameter/2, 0, -leaf_thickness/2])
        cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
        
        // Knuckles (positions 1, 3)
        for (i = [1, 3]) {
            translate([0, i * knuckle_height, 0])
            difference() {
                // Full cylinder
                cylinder(h = knuckle_height, d = knuckle_outer_diameter);
                // Inner hole
                cylinder(h = knuckle_height, d = knuckle_inner_diameter);
                // Cut left half
                translate([-knuckle_outer_diameter, 0, -knuckle_height/2])
                cube([knuckle_outer_diameter, knuckle_outer_diameter, knuckle_height * 2]);
            }
        }
    }
    
    // Screw holes
    for (i = [0, 1, 2]) {
        translate([leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0]) {
            // Through hole
            cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true);
            // Countersink
            translate([0, 0, leaf_thickness/2 - countersink_depth])
            cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter);
        }
    }
}
i2 success →
iter 2
19.1s · 2508/1051t · $0.1164
diff vs i1: +6/-6 
  // Butt hinge parameters
  leaf_width = 25;
  leaf_height = 30;
  leaf_thickness = 2;
  pin_diameter = 4;
  pin_length = 32;
  knuckle_outer_diameter = 8;
  knuckle_inner_diameter = 4.6;
  knuckle_height = 6;
  num_knuckles = 5;
  
  // Screw hole parameters
  screw_hole_diameter = 3.2;
  countersink_diameter = 6;
  countersink_depth = 1;
  screw_spacing = 8;
  
  $fn = 50;
  
  // Pin (centered on Y-axis)
  color("Silver")
  translate([0, -1, 0])
  cylinder(h = pin_length, d = pin_diameter);
  
  // Left leaf (x < 0)
  color("DarkGray")
  difference() {
      union() {
          // Flat plate
          translate([-leaf_width, 0, -leaf_thickness/2])
          cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
          
          // Knuckles (positions 0, 2, 4)
          for (i = [0, 2, 4]) {
              translate([0, i * knuckle_height, 0])
              difference() {
-                 // Full cylinder
+                 // Outer cylinder
                  cylinder(h = knuckle_height, d = knuckle_outer_diameter);
                  // Inner hole
                  cylinder(h = knuckle_height, d = knuckle_inner_diameter);
                  // Cut right half
-                 translate([0, 0, -knuckle_height/2])
-                 cube([knuckle_outer_diameter, knuckle_outer_diameter, knuckle_height * 2]);
+                 translate([0, -knuckle_outer_diameter/2, -1])
+                 cube([knuckle_outer_diameter, knuckle_outer_diameter, knuckle_height + 2]);
              }
          }
      }
      
      // Screw holes
      for (i = [0, 1, 2]) {
          translate([-leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0]) {
              // Through hole
              cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true);
              // Countersink
              translate([0, 0, leaf_thickness/2 - countersink_depth])
              cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter);
          }
      }
  }
  
  // Right leaf (x > 0)
  color("DarkGray")
  difference() {
      union() {
          // Flat plate
          translate([knuckle_outer_diameter/2, 0, -leaf_thickness/2])
          cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
          
          // Knuckles (positions 1, 3)
          for (i = [1, 3]) {
              translate([0, i * knuckle_height, 0])
              difference() {
-                 // Full cylinder
+                 // Outer cylinder
                  cylinder(h = knuckle_height, d = knuckle_outer_diameter);
                  // Inner hole
                  cylinder(h = knuckle_height, d = knuckle_inner_diameter);
                  // Cut left half
-                 translate([-knuckle_outer_diameter, 0, -knuckle_height/2])
-                 cube([knuckle_outer_diameter, knuckle_outer_diameter, knuckle_height * 2]);
+                 translate([-knuckle_outer_diameter, -knuckle_outer_diameter/2, -1])
+                 cube([knuckle_outer_diameter, knuckle_outer_diameter, knuckle_height + 2]);
              }
          }
      }
      
      // Screw holes
      for (i = [0, 1, 2]) {
          translate([leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0]) {
              // Through hole
              cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true);
              // Countersink
              translate([0, 0, leaf_thickness/2 - countersink_depth])
              cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter);
          }
      }
  }
SCAD (93 lines) 
// Butt hinge parameters
leaf_width = 25;
leaf_height = 30;
leaf_thickness = 2;
pin_diameter = 4;
pin_length = 32;
knuckle_outer_diameter = 8;
knuckle_inner_diameter = 4.6;
knuckle_height = 6;
num_knuckles = 5;

// Screw hole parameters
screw_hole_diameter = 3.2;
countersink_diameter = 6;
countersink_depth = 1;
screw_spacing = 8;

$fn = 50;

// Pin (centered on Y-axis)
color("Silver")
translate([0, -1, 0])
cylinder(h = pin_length, d = pin_diameter);

// Left leaf (x < 0)
color("DarkGray")
difference() {
    union() {
        // Flat plate
        translate([-leaf_width, 0, -leaf_thickness/2])
        cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
        
        // Knuckles (positions 0, 2, 4)
        for (i = [0, 2, 4]) {
            translate([0, i * knuckle_height, 0])
            difference() {
                // Outer cylinder
                cylinder(h = knuckle_height, d = knuckle_outer_diameter);
                // Inner hole
                cylinder(h = knuckle_height, d = knuckle_inner_diameter);
                // Cut right half
                translate([0, -knuckle_outer_diameter/2, -1])
                cube([knuckle_outer_diameter, knuckle_outer_diameter, knuckle_height + 2]);
            }
        }
    }
    
    // Screw holes
    for (i = [0, 1, 2]) {
        translate([-leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0]) {
            // Through hole
            cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true);
            // Countersink
            translate([0, 0, leaf_thickness/2 - countersink_depth])
            cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter);
        }
    }
}

// Right leaf (x > 0)
color("DarkGray")
difference() {
    union() {
        // Flat plate
        translate([knuckle_outer_diameter/2, 0, -leaf_thickness/2])
        cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
        
        // Knuckles (positions 1, 3)
        for (i = [1, 3]) {
            translate([0, i * knuckle_height, 0])
            difference() {
                // Outer cylinder
                cylinder(h = knuckle_height, d = knuckle_outer_diameter);
                // Inner hole
                cylinder(h = knuckle_height, d = knuckle_inner_diameter);
                // Cut left half
                translate([-knuckle_outer_diameter, -knuckle_outer_diameter/2, -1])
                cube([knuckle_outer_diameter, knuckle_outer_diameter, knuckle_height + 2]);
            }
        }
    }
    
    // Screw holes
    for (i = [0, 1, 2]) {
        translate([leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0]) {
            // Through hole
            cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true);
            // Countersink
            translate([0, 0, leaf_thickness/2 - countersink_depth])
            cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter);
        }
    }
}
i3 success →
iter 3
18.6s · 2514/1089t · $0.1194
diff vs i2: +3/-0 
  // Butt hinge parameters
  leaf_width = 25;
  leaf_height = 30;
  leaf_thickness = 2;
  pin_diameter = 4;
  pin_length = 32;
  knuckle_outer_diameter = 8;
  knuckle_inner_diameter = 4.6;
  knuckle_height = 6;
  num_knuckles = 5;
  
  // Screw hole parameters
  screw_hole_diameter = 3.2;
  countersink_diameter = 6;
  countersink_depth = 1;
  screw_spacing = 8;
  
  $fn = 50;
  
  // Pin (centered on Y-axis)
  color("Silver")
  translate([0, -1, 0])
+ rotate([-90, 0, 0])
  cylinder(h = pin_length, d = pin_diameter);
  
  // Left leaf (x < 0)
  color("DarkGray")
  difference() {
      union() {
          // Flat plate
          translate([-leaf_width, 0, -leaf_thickness/2])
          cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
          
          // Knuckles (positions 0, 2, 4)
          for (i = [0, 2, 4]) {
              translate([0, i * knuckle_height, 0])
+             rotate([-90, 0, 0])
              difference() {
                  // Outer cylinder
                  cylinder(h = knuckle_height, d = knuckle_outer_diameter);
                  // Inner hole
                  cylinder(h = knuckle_height, d = knuckle_inner_diameter);
                  // Cut right half
                  translate([0, -knuckle_outer_diameter/2, -1])
                  cube([knuckle_outer_diameter, knuckle_outer_diameter, knuckle_height + 2]);
              }
          }
      }
      
      // Screw holes
      for (i = [0, 1, 2]) {
          translate([-leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0]) {
              // Through hole
              cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true);
              // Countersink
              translate([0, 0, leaf_thickness/2 - countersink_depth])
              cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter);
          }
      }
  }
  
  // Right leaf (x > 0)
  color("DarkGray")
  difference() {
      union() {
          // Flat plate
          translate([knuckle_outer_diameter/2, 0, -leaf_thickness/2])
          cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
          
          // Knuckles (positions 1, 3)
          for (i = [1, 3]) {
              translate([0, i * knuckle_height, 0])
+             rotate([-90, 0, 0])
              difference() {
                  // Outer cylinder
                  cylinder(h = knuckle_height, d = knuckle_outer_diameter);
                  // Inner hole
                  cylinder(h = knuckle_height, d = knuckle_inner_diameter);
                  // Cut left half
                  translate([-knuckle_outer_diameter, -knuckle_outer_diameter/2, -1])
                  cube([knuckle_outer_diameter, knuckle_outer_diameter, knuckle_height + 2]);
              }
          }
      }
      
      // Screw holes
      for (i = [0, 1, 2]) {
          translate([leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0]) {
              // Through hole
              cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true);
              // Countersink
              translate([0, 0, leaf_thickness/2 - countersink_depth])
              cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter);
          }
      }
  }
SCAD (96 lines) 
// Butt hinge parameters
leaf_width = 25;
leaf_height = 30;
leaf_thickness = 2;
pin_diameter = 4;
pin_length = 32;
knuckle_outer_diameter = 8;
knuckle_inner_diameter = 4.6;
knuckle_height = 6;
num_knuckles = 5;

// Screw hole parameters
screw_hole_diameter = 3.2;
countersink_diameter = 6;
countersink_depth = 1;
screw_spacing = 8;

$fn = 50;

// Pin (centered on Y-axis)
color("Silver")
translate([0, -1, 0])
rotate([-90, 0, 0])
cylinder(h = pin_length, d = pin_diameter);

// Left leaf (x < 0)
color("DarkGray")
difference() {
    union() {
        // Flat plate
        translate([-leaf_width, 0, -leaf_thickness/2])
        cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
        
        // Knuckles (positions 0, 2, 4)
        for (i = [0, 2, 4]) {
            translate([0, i * knuckle_height, 0])
            rotate([-90, 0, 0])
            difference() {
                // Outer cylinder
                cylinder(h = knuckle_height, d = knuckle_outer_diameter);
                // Inner hole
                cylinder(h = knuckle_height, d = knuckle_inner_diameter);
                // Cut right half
                translate([0, -knuckle_outer_diameter/2, -1])
                cube([knuckle_outer_diameter, knuckle_outer_diameter, knuckle_height + 2]);
            }
        }
    }
    
    // Screw holes
    for (i = [0, 1, 2]) {
        translate([-leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0]) {
            // Through hole
            cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true);
            // Countersink
            translate([0, 0, leaf_thickness/2 - countersink_depth])
            cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter);
        }
    }
}

// Right leaf (x > 0)
color("DarkGray")
difference() {
    union() {
        // Flat plate
        translate([knuckle_outer_diameter/2, 0, -leaf_thickness/2])
        cube([leaf_width - knuckle_outer_diameter/2, leaf_height, leaf_thickness]);
        
        // Knuckles (positions 1, 3)
        for (i = [1, 3]) {
            translate([0, i * knuckle_height, 0])
            rotate([-90, 0, 0])
            difference() {
                // Outer cylinder
                cylinder(h = knuckle_height, d = knuckle_outer_diameter);
                // Inner hole
                cylinder(h = knuckle_height, d = knuckle_inner_diameter);
                // Cut left half
                translate([-knuckle_outer_diameter, -knuckle_outer_diameter/2, -1])
                cube([knuckle_outer_diameter, knuckle_outer_diameter, knuckle_height + 2]);
            }
        }
    }
    
    // Screw holes
    for (i = [0, 1, 2]) {
        translate([leaf_width * 0.6, leaf_height/2 + (i - 1) * screw_spacing, 0]) {
            // Through hole
            cylinder(h = leaf_thickness + 1, d = screw_hole_diameter, center = true);
            // Countersink
            translate([0, 0, leaf_thickness/2 - countersink_depth])
            cylinder(h = countersink_depth + 0.1, d1 = screw_hole_diameter, d2 = countersink_diameter);
        }
    }
}