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3D printing Audio Technology

Full-range desktop speakers – FR3

Metal-filled filament and internal support add significant mass and rigidity.

The first version used internal ribbing and bitumen paint to reduce enclosure resonance. The second version used an external carbon fiber shell. Both approaches were a bit cumbersome. For the third version we wanted to fully use the capabilities of 3D-printing. Therefore, a high-density metal-filled filament was used and internal gyroid-shaped support was used even where overhanging surfaces would not have required it. In addition, height and tilt can be adjusted using three threaded rods that form a tripod. The finished enclosure with three 14 mm trapezoid-threaded nuts bonded to it weighs 1.2 kg.

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