With the growth of additive manufacturing (AM), there has been increasing demand for fabricating conformal electronics that directly integrate with larger components to enable unique functionality. However, fabrication of conformal electronics is challenging because devices must merge with host substrates regardless of curvilinearity, topography, or substrate material. In this work, we employ aerosol jet (AJ) printing, an AM method for jet printing electronics using ink-based materials, and a custom-made lathe mechanism for mounting flexible substrates and 3D objects on a rotating axis. Using this method of lathe-based AJ printing, conformal electronics are printed around the circumference of rotational bodies with 3D curvilinear surfaces through cylindrical-coordinate motion. We characterize the diverse capabilities of lathe AJ (LAJ) printing and demonstrate flexible conformal electronics including multilayer carbon nanotube transistors. Lastly, a graphene sensor is conformally printed on an inflated catheter balloon for temperature and inflation monitoring, thus highlighting the versatilities of LAJ printing.

随着增材制造 (AM) 的发展，对制造直接与较大组件集成以实现独特功能的保形电子产品的需求不断增加。然而，共形电子器件的制造具有挑战性，因为无论曲线、形貌或基板材料如何，器件都必须与主基板融合。在这项工作中，我们采用气溶胶喷射 (AJ) 打印，这是一种使用墨水材料喷射打印电子产品的 AM 方法，以及用于在旋转轴上安装柔性基板和 3D 物体的定制车床机构。使用这种基于车床的 AJ 打印方法，通过圆柱坐标运动，在具有 3D 曲线表面的旋转体圆周上打印共形电子器件。我们描述了车床 AJ (LAJ) 打印的多种功能，并展示了包括多层碳纳米管晶体管在内的柔性保形电子器件。最后，石墨烯传感器被共形地印刷在充气导管球囊上，用于温度和充气监测，从而突出了 LAJ 印刷的多功能性。