living_lattice_benchmark_by_Stef_Caso10

Living Lattice Benchmark – Full Model Description

📐 Overall Structure

• Base plate: 180 × 120 mm, thickness 2.5 mm.
• The model is a single integrated STL, designed to test multiple aspects of 3D printing in one object.
• Includes both functional and geometric stress tests, spanning extremes of overhang, resolution, and flexibility.

🧩 Test Features in Detail

1. Bridges and Cantilevers
   • Four sets of tower pairs connected by horizontal beams.
   • Beam lengths: 10, 20, 30, 40 mm.
   • Includes realistic cantilevered and unsupported spans, designed to evaluate sag, stringing, and extrusion consistency across long distances.
   • Some bridges extend close to or slightly beyond the edges of the base in the full model, intentionally testing print boundary behavior.
2. Thin Wall Structures
   • Continuous walls with thicknesses from 0.25 mm up to 1.0 mm.
   • Walls are aligned in parallel, spaced to simulate varying extrusion widths and test minimum feature capability.
   • Includes delicate walls that push the resolution limits of typical FDM/FFF printers.
3. Lattice Panels (Open-Cell Structures)
   • Two distinct lattice sections in a 40 × 40 mm panel: coarse (6 mm pitch) and fine (4 mm pitch).
   • Includes intersecting beams, diagonal struts, and varying thickness nodes.
   • Purpose: evaluate both structural integrity and surface finish in porous structures.
4. Overhang Ramp
   • Multi-level stepped ramp with gradually increasing angles.
   • Each step projects further outward, with precise rise and depth increments.
   • Designed to test overhang performance without supports at angles approaching 70°.
5. Living Hinge Mechanism
   • Two solid blocks joined by a thin flexible hinge strip (0.4 mm) reinforced with micro ribs.
   • Demonstrates functional motion, elasticity, and adhesion between successive layers.
   • Includes stress points to evaluate hinge durability under repeated bending.
6. Micro-Pillars / Fine Vertical Features
   • Array of pillars with square cross-sections: 1, 1.5, 2, 3, 4 mm, height 12 mm.
   • Challenges printer XY resolution, cooling, and z-axis consistency.
   • Allows testing for stringing, drooping, and layer uniformity on isolated vertical structures.
7. Tolerance and Clearance Bars
   • Fixed bar plus multiple parallel bars separated by gaps of 0.1–0.5 mm.
   • Allows precise evaluation of dimensional accuracy, gap fidelity, and fit tolerance.
   • Bars include micro chamfers and reliefs for measuring real-world functional tolerances.
8. Additional Design Features
   • Subtle fillets at high-stress junctions for durability.
   • Integrated ribs, supports, and chamfers to challenge slicer software and printer calibration.
   • Distributed test elements across the entire base to evaluate bed adhesion, warping, and layer consistency simultaneously.