The print surface (bed) was poly(etherimide) (PEI) sheet with 20-120°C adjustable temperature range. A simple square 20x20 mm with thickness of 0.5 mm of thickness was designed using Fusion 360 Software and the extracted .stl file was programed layer by layer using Repetier-Host Software. The parameters of the 3D printer including the temperature of the extrusion, the flow rate and the printing speed, were adjustable during the printing process using Repetier-Host Software. After printing, an ultra-thin coating (20 nm) of chromium (Cr) was applied onto the surface of the samples, using Quorum Q150T sputtering, to obtain electrical conductivity for scanning electron microscopy (SEM). The SEM images were obtained using UHR FE-SEM Hitachi SU8020.