tier-2-l-bracket / `claude-opus-4-5-20251101`

7 run / 累計 69.1s / 累計 $0.1530

claude opus 4.5 2025-11-01 bare

bare (provider default effort)

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success 10.8s · 361/652t · $0.0181

SCAD (57 lines)

// L-bracket with countersunk holes

// Parameters
flange_width = 50;      // X direction
flange_depth = 40;      // Y direction for horizontal, Z direction for vertical
thickness = 3;

// Countersunk hole parameters
hole_diameter = 4.5;    // M4 through hole
countersink_diameter = 8;
countersink_depth = 2;
edge_distance = 10;     // Distance from edge to hole center

// Module for countersunk hole (pointing in -Z direction, countersink on top)
module countersunk_hole() {
    union() {
        // Through hole
        cylinder(h = thickness + 1, d = hole_diameter, center = true, $fn = 32);
        // Countersink (cone + cylinder for flat bottom)
        translate([0, 0, thickness/2 - countersink_depth/2 + 0.01])
            cylinder(h = countersink_depth + 0.01, d1 = hole_diameter, d2 = countersink_diameter, $fn = 32);
    }
}

// Hole positions on horizontal flange (Y-Z plane holes, on surface facing -Z)
hole_x_offset = flange_width / 2;  // Center line
hole_y_positions = [edge_distance, flange_depth - edge_distance];

// Hole positions on vertical flange
hole_z_positions = [edge_distance, flange_depth - edge_distance];

difference() {
    union() {
        // Horizontal flange (+Y direction, sitting on Z=0 plane going down in -Z)
        // Actually: horizontal flange extends in +Y, thickness goes in -Z direction
        translate([0, 0, -thickness])
            cube([flange_width, flange_depth, thickness]);
        
        // Vertical flange (+Z direction)
        translate([0, -thickness, 0])
            cube([flange_width, thickness, flange_depth]);
    }
    
    // Countersunk holes on horizontal flange (countersink on bottom, -Z side)
    for (y = hole_y_positions) {
        translate([hole_x_offset, y, -thickness/2])
            rotate([180, 0, 0])
                countersunk_hole();
    }
    
    // Countersunk holes on vertical flange (countersink on -Y side, outside)
    for (z = hole_z_positions) {
        translate([hole_x_offset, -thickness/2, z])
            rotate([90, 0, 0])
                countersunk_hole();
    }
}

パラメータ (7) —

flange_width flange_depth thickness hole_diameter countersink_diameter countersink_depth edge_distance

スライダを動かすと openscad-wasm で再レンダリング

prompt

OpenSCAD で、L 字に折れた金具(L-bracket)を作ってください。

形状:
- 水平面と垂直面の 2 つのフランジが直角に繋がっている
- 水平面は 50mm × 40mm(幅 × 奥行き)
- 垂直面は 50mm × 40mm(幅 × 高さ)
- 板厚はどちらも 3mm
- 内側コーナーが原点になるように配置(水平面は +Y 方向、垂直面は +Z 方向に伸びる)

皿穴(countersunk holes):
- 各面に 2 個ずつ、合計 4 個
- M4 ねじ用(貫通穴 Φ4.5mm + 皿座面 Φ8mm × 深さ 2mm)
- 各面の中心線上で、面の縁から 10mm 内側、左右対称に 2 個並べる
- 皿座面は外側(ボルト頭が当たる側)に向ける

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: `effort`

low success →

6.0s · 462/427t · $0.0130

SCAD (44 lines)

$fn = 32;

// Parameters
flange_width = 50;
flange_depth = 40;
flange_height = 40;
thickness = 3;

hole_dia = 4.5;
countersink_dia = 8;
countersink_depth = 2;
edge_offset = 10;

module countersunk_hole() {
    cylinder(d=hole_dia, h=thickness+1);
    translate([0, 0, thickness - countersink_depth])
        cylinder(d1=hole_dia, d2=countersink_dia, h=countersink_depth + 0.01);
}

difference() {
    union() {
        // Horizontal flange (+Y direction)
        translate([0, 0, 0])
            cube([flange_width, flange_depth, thickness]);
        
        // Vertical flange (+Z direction)
        translate([0, 0, 0])
            cube([flange_width, thickness, flange_height]);
    }
    
    // Holes in horizontal flange (countersink on bottom, -Z side)
    for (x = [edge_offset, flange_width - edge_offset]) {
        translate([x, flange_depth - edge_offset, thickness])
            rotate([180, 0, 0])
                countersunk_hole();
    }
    
    // Holes in vertical flange (countersink on front, -Y side)
    for (x = [edge_offset, flange_width - edge_offset]) {
        translate([x, thickness, flange_height - edge_offset])
            rotate([90, 0, 0])
                countersunk_hole();
    }
}

mediumnot run

—

high (default) success →

10.8s · 361/652t · $0.0181

SCAD (57 lines)

// L-bracket with countersunk holes

// Parameters
flange_width = 50;      // X direction
flange_depth = 40;      // Y direction for horizontal, Z direction for vertical
thickness = 3;

// Countersunk hole parameters
hole_diameter = 4.5;    // M4 through hole
countersink_diameter = 8;
countersink_depth = 2;
edge_distance = 10;     // Distance from edge to hole center

// Module for countersunk hole (pointing in -Z direction, countersink on top)
module countersunk_hole() {
    union() {
        // Through hole
        cylinder(h = thickness + 1, d = hole_diameter, center = true, $fn = 32);
        // Countersink (cone + cylinder for flat bottom)
        translate([0, 0, thickness/2 - countersink_depth/2 + 0.01])
            cylinder(h = countersink_depth + 0.01, d1 = hole_diameter, d2 = countersink_diameter, $fn = 32);
    }
}

// Hole positions on horizontal flange (Y-Z plane holes, on surface facing -Z)
hole_x_offset = flange_width / 2;  // Center line
hole_y_positions = [edge_distance, flange_depth - edge_distance];

// Hole positions on vertical flange
hole_z_positions = [edge_distance, flange_depth - edge_distance];

difference() {
    union() {
        // Horizontal flange (+Y direction, sitting on Z=0 plane going down in -Z)
        // Actually: horizontal flange extends in +Y, thickness goes in -Z direction
        translate([0, 0, -thickness])
            cube([flange_width, flange_depth, thickness]);
        
        // Vertical flange (+Z direction)
        translate([0, -thickness, 0])
            cube([flange_width, thickness, flange_depth]);
    }
    
    // Countersunk holes on horizontal flange (countersink on bottom, -Z side)
    for (y = hole_y_positions) {
        translate([hole_x_offset, y, -thickness/2])
            rotate([180, 0, 0])
                countersunk_hole();
    }
    
    // Countersunk holes on vertical flange (countersink on -Y side, outside)
    for (z = hole_z_positions) {
        translate([hole_x_offset, -thickness/2, z])
            rotate([90, 0, 0])
                countersunk_hole();
    }
}

maxnot run

—

xhighnot run

—

variant: `thinking`

off (default) success →

6.0s · 462/427t · $0.0130

SCAD (44 lines)

$fn = 32;

// Parameters
flange_width = 50;
flange_depth = 40;
flange_height = 40;
thickness = 3;

hole_dia = 4.5;
countersink_dia = 8;
countersink_depth = 2;
edge_offset = 10;

module countersunk_hole() {
    cylinder(d=hole_dia, h=thickness+1);
    translate([0, 0, thickness - countersink_depth])
        cylinder(d1=hole_dia, d2=countersink_dia, h=countersink_depth + 0.01);
}

difference() {
    union() {
        // Horizontal flange (+Y direction)
        translate([0, 0, 0])
            cube([flange_width, flange_depth, thickness]);
        
        // Vertical flange (+Z direction)
        translate([0, 0, 0])
            cube([flange_width, thickness, flange_height]);
    }
    
    // Holes in horizontal flange (countersink on bottom, -Z side)
    for (x = [edge_offset, flange_width - edge_offset]) {
        translate([x, flange_depth - edge_offset, thickness])
            rotate([180, 0, 0])
                countersunk_hole();
    }
    
    // Holes in vertical flange (countersink on front, -Y side)
    for (x = [edge_offset, flange_width - edge_offset]) {
        translate([x, thickness, flange_height - edge_offset])
            rotate([90, 0, 0])
                countersunk_hole();
    }
}

adaptivenot run

—

dynamicnot run

—

iteration: `iter-png`

i1 success →

15.6s · 1769/902t · $0.0314

diff vs bare: +23/-20

  // L-bracket with countersunk holes
  
  // Parameters
  flange_width = 50;      // X direction
  flange_depth = 40;      // Y direction for horizontal, Z direction for vertical
  thickness = 3;
  
  // Countersunk hole parameters
  hole_diameter = 4.5;    // M4 through hole
  countersink_diameter = 8;
  countersink_depth = 2;
  edge_distance = 10;     // Distance from edge to hole center
  
- // Module for countersunk hole (pointing in -Z direction, countersink on top)
+ // Module for countersunk hole (pointing in +Z direction, countersink on top)
  module countersunk_hole() {
      union() {
          // Through hole
          cylinder(h = thickness + 1, d = hole_diameter, center = true, $fn = 32);
-         // Countersink (cone + cylinder for flat bottom)
-         translate([0, 0, thickness/2 - countersink_depth/2 + 0.01])
+         // Countersink (cone)
+         translate([0, 0, thickness/2 - countersink_depth])
              cylinder(h = countersink_depth + 0.01, d1 = hole_diameter, d2 = countersink_diameter, $fn = 32);
      }
  }
  
- // Hole positions on horizontal flange (Y-Z plane holes, on surface facing -Z)
- hole_x_offset = flange_width / 2;  // Center line
- hole_y_positions = [edge_distance, flange_depth - edge_distance];
+ // Hole X positions (symmetric about center line, 10mm from left and right edges)
+ hole_x_positions = [edge_distance, flange_width - edge_distance];
  
- // Hole positions on vertical flange
- hole_z_positions = [edge_distance, flange_depth - edge_distance];
- 
  difference() {
      union() {
-         // Horizontal flange (+Y direction, sitting on Z=0 plane going down in -Z)
-         // Actually: horizontal flange extends in +Y, thickness goes in -Z direction
+         // Horizontal flange: extends in +Y direction, thickness in +Z at bottom (Z=0 to Z=thickness)
+         // But inner corner at origin means the top surface of horizontal flange is at Z=0
+         // So horizontal flange goes from Z=-thickness to Z=0, extending in +Y
          translate([0, 0, -thickness])
              cube([flange_width, flange_depth, thickness]);
          
-         // Vertical flange (+Z direction)
+         // Vertical flange: extends in +Z direction from origin, thickness in +Y at back
+         // Inner corner at origin means inner surface is at Y=0
+         // So vertical flange goes from Y=-thickness to Y=0, extending in +Z
          translate([0, -thickness, 0])
              cube([flange_width, thickness, flange_depth]);
      }
      
-     // Countersunk holes on horizontal flange (countersink on bottom, -Z side)
-     for (y = hole_y_positions) {
-         translate([hole_x_offset, y, -thickness/2])
-             rotate([180, 0, 0])
+     // Countersunk holes on horizontal flange
+     // Holes at Y = 10mm from edge (which is at Y=0, so Y = flange_depth - edge_distance from far edge)
+     // Center of flange in Y direction, 10mm from the outer edge (Y = flange_depth)
+     // So hole Y position = flange_depth - edge_distance
+     for (x = hole_x_positions) {
+         translate([x, flange_depth - edge_distance, -thickness/2])
+             rotate([180, 0, 0])  // Countersink on bottom (-Z side, outside)
                  countersunk_hole();
      }
      
-     // Countersunk holes on vertical flange (countersink on -Y side, outside)
-     for (z = hole_z_positions) {
-         translate([hole_x_offset, -thickness/2, z])
-             rotate([90, 0, 0])
+     // Countersunk holes on vertical flange
+     // 10mm from top edge (Z = flange_depth), so Z = flange_depth - edge_distance
+     for (x = hole_x_positions) {
+         translate([x, -thickness/2, flange_depth - edge_distance])
+             rotate([-90, 0, 0])  // Countersink on -Y side (outside)
                  countersunk_hole();
      }
  }

SCAD (60 lines)

// L-bracket with countersunk holes

// Parameters
flange_width = 50;      // X direction
flange_depth = 40;      // Y direction for horizontal, Z direction for vertical
thickness = 3;

// Countersunk hole parameters
hole_diameter = 4.5;    // M4 through hole
countersink_diameter = 8;
countersink_depth = 2;
edge_distance = 10;     // Distance from edge to hole center

// Module for countersunk hole (pointing in +Z direction, countersink on top)
module countersunk_hole() {
    union() {
        // Through hole
        cylinder(h = thickness + 1, d = hole_diameter, center = true, $fn = 32);
        // Countersink (cone)
        translate([0, 0, thickness/2 - countersink_depth])
            cylinder(h = countersink_depth + 0.01, d1 = hole_diameter, d2 = countersink_diameter, $fn = 32);
    }
}

// Hole X positions (symmetric about center line, 10mm from left and right edges)
hole_x_positions = [edge_distance, flange_width - edge_distance];

difference() {
    union() {
        // Horizontal flange: extends in +Y direction, thickness in +Z at bottom (Z=0 to Z=thickness)
        // But inner corner at origin means the top surface of horizontal flange is at Z=0
        // So horizontal flange goes from Z=-thickness to Z=0, extending in +Y
        translate([0, 0, -thickness])
            cube([flange_width, flange_depth, thickness]);
        
        // Vertical flange: extends in +Z direction from origin, thickness in +Y at back
        // Inner corner at origin means inner surface is at Y=0
        // So vertical flange goes from Y=-thickness to Y=0, extending in +Z
        translate([0, -thickness, 0])
            cube([flange_width, thickness, flange_depth]);
    }
    
    // Countersunk holes on horizontal flange
    // Holes at Y = 10mm from edge (which is at Y=0, so Y = flange_depth - edge_distance from far edge)
    // Center of flange in Y direction, 10mm from the outer edge (Y = flange_depth)
    // So hole Y position = flange_depth - edge_distance
    for (x = hole_x_positions) {
        translate([x, flange_depth - edge_distance, -thickness/2])
            rotate([180, 0, 0])  // Countersink on bottom (-Z side, outside)
                countersunk_hole();
    }
    
    // Countersunk holes on vertical flange
    // 10mm from top edge (Z = flange_depth), so Z = flange_depth - edge_distance
    for (x = hole_x_positions) {
        translate([x, -thickness/2, flange_depth - edge_distance])
            rotate([-90, 0, 0])  // Countersink on -Y side (outside)
                countersunk_hole();
    }
}

i2 success →

11.2s · 1900/837t · $0.0304

diff vs i1: +21/-25

  // L-bracket with countersunk holes
  
  // Parameters
  flange_width = 50;      // X direction
  flange_depth = 40;      // Y direction for horizontal, Z direction for vertical
  thickness = 3;
  
  // Countersunk hole parameters
  hole_diameter = 4.5;    // M4 through hole
  countersink_diameter = 8;
  countersink_depth = 2;
  edge_distance = 10;     // Distance from edge to hole center
  
- // Module for countersunk hole (pointing in +Z direction, countersink on top)
- module countersunk_hole() {
+ // Module for countersunk hole
+ module countersunk_hole(h) {
      union() {
          // Through hole
-         cylinder(h = thickness + 1, d = hole_diameter, center = true, $fn = 32);
-         // Countersink (cone)
-         translate([0, 0, thickness/2 - countersink_depth])
+         cylinder(h = h + 1, d = hole_diameter, center = true, $fn = 32);
+         // Countersink (cone) at top
+         translate([0, 0, h/2 - countersink_depth])
              cylinder(h = countersink_depth + 0.01, d1 = hole_diameter, d2 = countersink_diameter, $fn = 32);
      }
  }
  
  // Hole X positions (symmetric about center line, 10mm from left and right edges)
  hole_x_positions = [edge_distance, flange_width - edge_distance];
  
  difference() {
      union() {
-         // Horizontal flange: extends in +Y direction, thickness in +Z at bottom (Z=0 to Z=thickness)
-         // But inner corner at origin means the top surface of horizontal flange is at Z=0
-         // So horizontal flange goes from Z=-thickness to Z=0, extending in +Y
-         translate([0, 0, -thickness])
-             cube([flange_width, flange_depth, thickness]);
+         // Horizontal flange: inner surface at Z=thickness, outer surface at Z=0
+         // Extends in +Y direction from origin
+         cube([flange_width, flange_depth, thickness]);
          
-         // Vertical flange: extends in +Z direction from origin, thickness in +Y at back
-         // Inner corner at origin means inner surface is at Y=0
-         // So vertical flange goes from Y=-thickness to Y=0, extending in +Z
-         translate([0, -thickness, 0])
-             cube([flange_width, thickness, flange_depth]);
+         // Vertical flange: inner surface at Y=thickness, outer surface at Y=0
+         // Extends in +Z direction from origin
+         cube([flange_width, thickness, flange_depth]);
      }
      
      // Countersunk holes on horizontal flange
-     // Holes at Y = 10mm from edge (which is at Y=0, so Y = flange_depth - edge_distance from far edge)
-     // Center of flange in Y direction, 10mm from the outer edge (Y = flange_depth)
-     // So hole Y position = flange_depth - edge_distance
+     // Holes centered at Y = flange_depth - edge_distance (10mm from far edge)
+     // Countersink on bottom (Z=0 side, outside where bolt head sits)
      for (x = hole_x_positions) {
-         translate([x, flange_depth - edge_distance, -thickness/2])
-             rotate([180, 0, 0])  // Countersink on bottom (-Z side, outside)
-                 countersunk_hole();
+         translate([x, flange_depth - edge_distance, thickness/2])
+             rotate([180, 0, 0])
+                 countersunk_hole(thickness);
      }
      
      // Countersunk holes on vertical flange
-     // 10mm from top edge (Z = flange_depth), so Z = flange_depth - edge_distance
+     // Holes centered at Z = flange_depth - edge_distance (10mm from top edge)
+     // Countersink on front (Y=0 side, outside where bolt head sits)
      for (x = hole_x_positions) {
-         translate([x, -thickness/2, flange_depth - edge_distance])
-             rotate([-90, 0, 0])  // Countersink on -Y side (outside)
-                 countersunk_hole();
+         translate([x, thickness/2, flange_depth - edge_distance])
+             rotate([90, 0, 0])
+                 countersunk_hole(thickness);
      }
  }

SCAD (56 lines)

// L-bracket with countersunk holes

// Parameters
flange_width = 50;      // X direction
flange_depth = 40;      // Y direction for horizontal, Z direction for vertical
thickness = 3;

// Countersunk hole parameters
hole_diameter = 4.5;    // M4 through hole
countersink_diameter = 8;
countersink_depth = 2;
edge_distance = 10;     // Distance from edge to hole center

// Module for countersunk hole
module countersunk_hole(h) {
    union() {
        // Through hole
        cylinder(h = h + 1, d = hole_diameter, center = true, $fn = 32);
        // Countersink (cone) at top
        translate([0, 0, h/2 - countersink_depth])
            cylinder(h = countersink_depth + 0.01, d1 = hole_diameter, d2 = countersink_diameter, $fn = 32);
    }
}

// Hole X positions (symmetric about center line, 10mm from left and right edges)
hole_x_positions = [edge_distance, flange_width - edge_distance];

difference() {
    union() {
        // Horizontal flange: inner surface at Z=thickness, outer surface at Z=0
        // Extends in +Y direction from origin
        cube([flange_width, flange_depth, thickness]);
        
        // Vertical flange: inner surface at Y=thickness, outer surface at Y=0
        // Extends in +Z direction from origin
        cube([flange_width, thickness, flange_depth]);
    }
    
    // Countersunk holes on horizontal flange
    // Holes centered at Y = flange_depth - edge_distance (10mm from far edge)
    // Countersink on bottom (Z=0 side, outside where bolt head sits)
    for (x = hole_x_positions) {
        translate([x, flange_depth - edge_distance, thickness/2])
            rotate([180, 0, 0])
                countersunk_hole(thickness);
    }
    
    // Countersunk holes on vertical flange
    // Holes centered at Z = flange_depth - edge_distance (10mm from top edge)
    // Countersink on front (Y=0 side, outside where bolt head sits)
    for (x = hole_x_positions) {
        translate([x, thickness/2, flange_depth - edge_distance])
            rotate([90, 0, 0])
                countersunk_hole(thickness);
    }
}

i3 success →

8.6s · 1761/808t · $0.0290

diff vs i2: +7/-7

  // L-bracket with countersunk holes
  
  // Parameters
  flange_width = 50;      // X direction
  flange_depth = 40;      // Y direction for horizontal, Z direction for vertical
  thickness = 3;
  
  // Countersunk hole parameters
  hole_diameter = 4.5;    // M4 through hole
  countersink_diameter = 8;
  countersink_depth = 2;
  edge_distance = 10;     // Distance from edge to hole center
  
- // Module for countersunk hole
+ // Module for countersunk hole (countersink at Z+ side)
  module countersunk_hole(h) {
      union() {
          // Through hole
-         cylinder(h = h + 1, d = hole_diameter, center = true, $fn = 32);
-         // Countersink (cone) at top
-         translate([0, 0, h/2 - countersink_depth])
+         cylinder(h = h + 0.02, d = hole_diameter, center = true, $fn = 32);
+         // Countersink (cone) at top (Z+ side)
+         translate([0, 0, h/2 - countersink_depth + 0.01])
              cylinder(h = countersink_depth + 0.01, d1 = hole_diameter, d2 = countersink_diameter, $fn = 32);
      }
  }
  
  // Hole X positions (symmetric about center line, 10mm from left and right edges)
  hole_x_positions = [edge_distance, flange_width - edge_distance];
  
  difference() {
      union() {
-         // Horizontal flange: inner surface at Z=thickness, outer surface at Z=0
+         // Horizontal flange: bottom surface at Z=0, top surface at Z=thickness
          // Extends in +Y direction from origin
          cube([flange_width, flange_depth, thickness]);
          
-         // Vertical flange: inner surface at Y=thickness, outer surface at Y=0
+         // Vertical flange: front surface at Y=0, back surface at Y=thickness
          // Extends in +Z direction from origin
          cube([flange_width, thickness, flange_depth]);
      }
      
      // Countersunk holes on horizontal flange
      // Holes centered at Y = flange_depth - edge_distance (10mm from far edge)
      // Countersink on bottom (Z=0 side, outside where bolt head sits)
      for (x = hole_x_positions) {
          translate([x, flange_depth - edge_distance, thickness/2])
              rotate([180, 0, 0])
                  countersunk_hole(thickness);
      }
      
      // Countersunk holes on vertical flange
      // Holes centered at Z = flange_depth - edge_distance (10mm from top edge)
      // Countersink on front (Y=0 side, outside where bolt head sits)
      for (x = hole_x_positions) {
          translate([x, thickness/2, flange_depth - edge_distance])
-             rotate([90, 0, 0])
+             rotate([-90, 0, 0])
                  countersunk_hole(thickness);
      }
  }

SCAD (56 lines)

// L-bracket with countersunk holes

// Parameters
flange_width = 50;      // X direction
flange_depth = 40;      // Y direction for horizontal, Z direction for vertical
thickness = 3;

// Countersunk hole parameters
hole_diameter = 4.5;    // M4 through hole
countersink_diameter = 8;
countersink_depth = 2;
edge_distance = 10;     // Distance from edge to hole center

// Module for countersunk hole (countersink at Z+ side)
module countersunk_hole(h) {
    union() {
        // Through hole
        cylinder(h = h + 0.02, d = hole_diameter, center = true, $fn = 32);
        // Countersink (cone) at top (Z+ side)
        translate([0, 0, h/2 - countersink_depth + 0.01])
            cylinder(h = countersink_depth + 0.01, d1 = hole_diameter, d2 = countersink_diameter, $fn = 32);
    }
}

// Hole X positions (symmetric about center line, 10mm from left and right edges)
hole_x_positions = [edge_distance, flange_width - edge_distance];

difference() {
    union() {
        // Horizontal flange: bottom surface at Z=0, top surface at Z=thickness
        // Extends in +Y direction from origin
        cube([flange_width, flange_depth, thickness]);
        
        // Vertical flange: front surface at Y=0, back surface at Y=thickness
        // Extends in +Z direction from origin
        cube([flange_width, thickness, flange_depth]);
    }
    
    // Countersunk holes on horizontal flange
    // Holes centered at Y = flange_depth - edge_distance (10mm from far edge)
    // Countersink on bottom (Z=0 side, outside where bolt head sits)
    for (x = hole_x_positions) {
        translate([x, flange_depth - edge_distance, thickness/2])
            rotate([180, 0, 0])
                countersunk_hole(thickness);
    }
    
    // Countersunk holes on vertical flange
    // Holes centered at Z = flange_depth - edge_distance (10mm from top edge)
    // Countersink on front (Y=0 side, outside where bolt head sits)
    for (x = hole_x_positions) {
        translate([x, thickness/2, flange_depth - edge_distance])
            rotate([-90, 0, 0])
                countersunk_hole(thickness);
    }
}

tier-2-l-bracket / claude-opus-4-5-20251101

prompt

variant: effort

variant: thinking

iteration: iter-png

tier-2-l-bracket / `claude-opus-4-5-20251101`

variant: `effort`

variant: `thinking`

iteration: `iter-png`