4-Hole Corner Block

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Bounding box: 61 × 60 × 85 mm
Engine: 3D Printing B-rep
Parameters: 10
Published: October 31, 2026

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The prompt

// Outer block dimensions (cm → converted to mm for 3D print) block_x = 61; // 6.1 cm block_y = 60; // 6.0 cm block_z = 85; // 8.5 cm hole_dia = 23; // 2.3 cm diameter hole_depth = 20;// 2 cm depth gap = 6; // 0.6 cm gap (edge‑to‑edge / edge‑to‑block) // Calculate hole centre positions hole_r = hole_dia / 2; cx1 = gap + hole_r; cx2 = block_x - gap - hole_r; cy1 = gap + hole_r; cy2 = block_y - gap - hole_r; difference() { cube([block_x, block_y, block_z]); translate([cx1, cy1, 0]) cylinder(d=hole_dia, h=hole_depth); translate([cx2, cy1, 0]) cylinder(d=hole_dia, h=hole_depth); translate([cx1, cy2, 0]) cylinder(d=hole_dia, h=hole_depth); translate([cx2, cy2, 0]) cylinder(d=hole_dia, h=hole_depth); }

Parameters

Name	Value	Range
Width X	61 mm	20 – 200
Depth Y	60 mm	20 – 200
Height Z	85 mm	10 – 250
Hole diameter	23 mm	5 – 50
Full-diameter hole depth	20 mm	2 – 200
Hole edge to block edge	6 mm	1 – 30
Lead-in chamfer at hole mouth	1 mm	0 – 5
Conical drill point depth	6 mm	0 – 20
Vertical corner radius	4 mm	0 – 15
Bottom edge chamfer	1.5 mm	0 – 4

Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.

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