用动态曲线切片提升多轴DLP打印精度与稳定性。
Curve-based slicer for multi-axis DLP 3D printing
- 以参数曲线优化分层与平台运动轨迹，自动生成最佳切片路径。
- 实测可减少悬垂区缺陷与阶梯效应，实现高质量复杂结构打印。
- 适合需高精度、无支撑结构的复杂3D打印应用。
本文提出一种新型基于曲线的切片方法，用于数字光处理（DLP）多轴3D打印中生成具有动态变化方向的平面层。该方法将切片问题建模为优化任务，通过计算参数曲线来定义切片层和模型分割，其切线平面决定平台运动方向。这些曲线自然构成构建平台的运动轨迹，并可优化以满足无碰撞运动和无漂浮沉积等制造目标。在机器人多轴DLP打印系统上进行物理实验验证，结果表明优化后的曲线能稳健引导平滑、高质量地制造复杂几何形状。
原文摘要 · Abstract (English)
This paper introduces a novel curve-based slicing method for generating planar layers with dynamically varying orientations in digital light processing (DLP) 3D printing. Our approach effectively addresses key challenges in DLP printing, such as regions with large overhangs and staircase artifacts, while preserving its intrinsic advantages of high resolution and fast printing speeds. We formulate the slicing problem as an optimization task, in which parametric curves are computed to define both the slicing layers and the model partitioning through their tangent planes. These curves inherently define motion trajectories for the build platform and can be optimized to meet critical manufacturing objectives, including collision-free motion and floating-free deposition. We validate our method through physical experiments on a robotic multi-axis DLP printing setup, demonstrating that the optimized curves can robustly guide smooth, high-quality fabrication of complex geometries.
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