Additive manufacturing enables the fabrication of personalized devices with complex geometries and multifunctional properties. However, it remains challenging to control the assembly of functional polymers during the manufacturing process to achieve optimized device performance. My research addresses this challenge by developing a process-controlled additive manufacturing platform. By tuning parameters such as evaporation rate, shear forces, and external fields during printing, I aim to regulate polymer assembly pathways and precisely control the resulting optical, mechanical, and electrical properties of printed structures. Building on my prior work in evaporation-driven direct ink writing and interface-controlled printing, I propose to establish a universal strategy for fabricating electro-optical-mechanical devices tailored to individual needs, such as wearable sensors and health monitoring systems. This research bridges the gap between material development and device manufacturing, paving the way for adaptive, sustainable, and customizable production of functional devices.