Jerusalem Cube Fractal – Free 3D STL (Test Print)

Experience the fascinating structure of the Jerusalem Cube, a classic 3D fractal built from recursive cubes and cross-shaped voids. This model is a clean, geometric interpretation of the Jerusalem fractal, where simple cubic forms repeat at smaller scales to create a complex and highly recognizable structure.

This free STL download is ideal as a 3D printing test model. The Jerusalem Cube includes bridges, overhangs, sharp corners, and internal gaps, making it perfect for evaluating printer accuracy, cooling, bridging performance, and dimensional consistency.

🔹 Features

• Free STL file for download and personal use

• Classic Jerusalem Cube fractal geometry

• Strong cubic symmetry with repeating negative space

• Great as a calibration print or decorative object

• Suitable for both FDM and resin 3D printers

🔹 Printing Recommendations

• Material: PLA recommended for reliable results

• Layer height: 0.2 mm or finer for crisp edges

• Supports: Not required at standard scales

• Infill: Not needed – the fractal structure defines the interior

• Scaling: Larger sizes reveal the fractal details more clearly

🔹 Why Print This Model?

The Jerusalem Cube is perfect for:

• Testing bridging and cooling performance

• Exploring fractal and mathematical geometry

• Educational demonstrations of recursive design

• Minimalist, modern desk art

Its clean lines and repeating structure make print quality issues easy to spot, which is why this model works so well as a practical benchmarking print.

If you download and print it, consider sharing your makes and print settings on Printables so others can learn from your results. Happy printing and enjoy exploring fractals in 3D!