Parametric Ripple Pen Holder

The inspiration for this pen holder comes from the classic Lissajous curve. By superimposing the trajectories of the parametric equations x = sin(3θ) and y = cos(5θ), rhythmic periodic undulating patterns are formed on the surface of the cylinder. When light passes by, the fine ridges create flowing moire patterns of light and shadow, as if the rhythm of mathematics has been frozen at the fingertips. 🛠️ print parameters - Material: PLA (Black/dark gray is recommended for the best light and shadow effects) - Weight: 78g - Printing time: Approximately 3 hours - Layer thickness: 0.2mm (balancing details and speed) - Support: No support required. Print directly - Size: Compatible with standard desktop stationery, stable and not toppling over 🎨 Product highlights - Precision texture: Each edge line has been parametrically optimized, providing a smooth touch and visually presenting a sense of high-end precision CNC engraving. - Light and Shadow Magic: Light from different angles will creat