论文标题
体积螺旋添加剂制造
Volumetric Helical Additive Manufacturing
论文作者
论文摘要
3D打印彻底改变了各个领域的体积组件和结构的制造。得益于可光化树脂的出现，最近已经开发出了几种完全易于体积的基于轻灯的技术，以克服当前3D打印的局限性。尽管很快，但这种新一代打印机无法制造大小通常超过厘米的物体而不会严重影响最终分辨率。基于层析成像添加剂制造，我们提出了一种用于体积螺旋添加剂制造（VHAM）多CM刻度结构的方法，而无需放大投影模式。它包括照亮光抗抗光圈，而后者遵循螺旋运动。该动作允许增加可打印对象的高度。此外，我们将用于投影光图案的调制器偏离中心，以使对象的横向尺寸加倍。我们通过实验表明使用这两个技巧来打印较大的物体（最多3 cm x 3 cm x 5 cm），同时保持高分辨率（<200 um）和短打印时间（<10分钟）。
3D printing has revolutionized the manufacturing of volumetric components and structures for various fields. Thanks to the advent of photocurable resins, several fully volumetric light-based techniques have been recently developed to overcome the current limitations of 3D printing. Although fast, this new generation of printers cannot fabricate objects whose size typically exceeds the centimeter without severely affecting the final resolution. Based on tomographic volumetric additive manufacturing, we propose a method for volumetric helical additive manufacturing (VHAM) multi-cm scale structures without magnifying the projected patterns. It consists of illuminating the photoresist while the latter follows a helical motion. This movement allows for increasing the height of the printable object. Additionally, we off-center the modulator used for projecting the light patterns to double the object's lateral size. We demonstrate experimentally the interest in using these two tricks for printing larger objects (up to 3 cm x 3 cm x 5 cm) while maintaining high resolution (< 200 um) and short print time (< 10 min).
