Additively manufactured 2D patterning and 3D structure were accomplished through the use of Indium based low melting alloy, known as Field’s metal, via liquid metal direct writing 3D printing technology. The Field’s metal has the eutectic composition of 51In-31.5Bi-16.5Sn characterized with its low melting temperature of 62˚C, decent ductility for shape deformation, and good adhesion to substrates. The alloy was melted and printed through the nozzle diameter of 300μm on various types of substrates including fused deposition model (FDM) based substrate. The printing operated at nozzle temperature of 70˚C and therefore no thermal damage was applied on polymer based substrates such as PI and PES.