The development of high quality, low cost flexible electronics is of critical national need especially to the future technologies of the Department of Defense (DOD) including monitoring and augmenting human performance, as well as enabling sensors, antennas, and multifunctional components for unmanned aerial vehicle (UAV) systems. The fundamental challenge to realizing robust, flexible electronics is in the development of strain resistant high quality semiconducting, conducting, and insulating materials. The material quality is, many times, limited by the fact that typical semiconductor device fabrication processes require temperatures that exceed that of the melting temperature of conformal and flexible substrates, restricting the ability to directly grow the materials onto the flexible substrate of interest. To overcome this, the electronic materials must be synthesized at lower temperatures, transferred from a semiconductor fabrication compliant substrate to the flexible substrate of interest, or post-processed by various techniques in order to achieve similar material quality and performance. 3D printing combined with transient heating through the use of optical annealing is a comprehensive solution that can overcome this critical barrier to flexible electronics processing. In this work we seek to utilize a recently acquired state of the art 3D printer with a vision system coupled with laser annealing capabilities to augment our 3D printing capabilities. With the help of the NSF CREST center ($5million NSF grant) we have initiated key projects on flexible electronics printing with DOD’s Air Force, Army Research Labs and Harvard University. The projects include – 1) Flexible Multilayer MoS2 Transistors 2) 3D Printing Polymer Electrolyte Batteries 3) Laser processing of graphene for sensors and electrode assemblies 4) Novel Cu-based Core–Shell Nanoparticles for Printed Flexible Electrodes. In addition to building novel structures and devices an effort will also be established to understand fundamental structure-processing-function relationships in these materials.