During the current Pandemic, seven and a half million flights worldwide were canceled which disrupted the supply chain of all types of goods such as, personal protective gears, medical health devices, raw materials, food, and other essential equipments. The demand for health and medical related goods increased during this period globally, while the production using classical manufacturing techniques were effected because of the lockdowns and disruption in the transporation system. This created the need of geo scattered, small, and rapid manufacturing units along with a smart computer aided design (CAD) facility. The availability of 3D printing technologies and open source CAD design made it possible to overcome this need. In this article, we present an extensive review on the utilization of 3D printing technology in the days of pandamic. We observe that 3D printing together with smart CAD design show promise to overcome the disruption caused by the lockdown of classical manufacturing units specially for medical and testing equipment, and protective gears. We observe that there are several short communications, commentaries, correspondences, editorials and mini reviews compiled and published; however, a systematic state-of-the-art review is required to identify the significance of 3D printing, design for additive manufacturing (AM), and digital supply chain for handling emergency situations and in the post-COVID era. We present a review of various benefits of 3DP particularly in emergency situations such as a pandemic. Furthermore, some relevant iterative design and 3DP case studies are discussed systematically. Finally, this article highlights the areas that can help to control the emergency situation such as a pandemic, and critically discusses the research gaps that need further research in order to exploit the full potential of 3DP in pandemic and post-pandemic future era.

中文翻译：

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COVID-19 时代与智能计算机辅助设计纠缠不清的 3D 打印兴起

在当前的大流行期间，全球取消了 750 万个航班，这扰乱了各种商品的供应链，例如个人防护装备、医疗保健设备、原材料、食品和其他基本设备。在此期间，全球对健康和医疗相关商品的需求增加，而由于运输系统的封锁和中断，使用经典制造技术的生产受到影响。这创造了对地理分散、小型和快速制造单元以及智能计算机辅助设计 (CAD) 设施的需求。3D 打印技术和开源 CAD 设计的可用性使克服这种需求成为可能。在本文中，我们对大熊猫时代 3D 打印技术的利用进行了广泛的回顾。我们观察到，3D 打印与智能 CAD 设计相结合，有望克服因医疗和测试设备以及防护装备等传统制造单元的锁定而造成的中断。我们观察到有一些简短的通讯、评论、通信、社论和小型评论被编译和出版；然而，需要系统地进行最先进的审查，以确定 3D 打印、增材制造 (AM) 设计和数字供应链在处理紧急情况和后 COVID 时代的重要性。我们回顾了 3DP 的各种好处，特别是在大流行等紧急情况下。此外，系统地讨论了一些相关的迭代设计和 3DP 案例研究。最后，