A Solid Oxide Fuel Cell (SOFC) is a ceramic-based multilayer device which efficiently generates electric power from H2 or Methane. The standard fabrication of SOFC devices involves expensive and time-consuming multi-step manufacturing processes including tape casting, screen printing, firing, shaping and several high-temperature thermal treatments. This leads to long production time, low reliability and high capital cost. Present work proposes a breakthrough on the SOFC fabrication based on ceramic hybrid 3D printing technology. The Cell3Ditor EU project (www.cell3ditor.eu) has developed a 3D printing process for production of monolithic ceramic SOFC stacks without joints and sealing. The multi material 3D printer enables mass production of the whole SOFC stacks in a single printing step followed by a co-sintering process. This opens a wide range of possibilities for new and improved designs for SOFC and other devices based on functional ceramics. Developed hybrid printer combines stereolithography and robocasting in a single machine for a sequential application of different materials during the printing process. Inks and pastes based on the different ceramic materials needed to build a SOFC stack are being optimized for 3D printing to reach the required thicknesses, gas tightness, porosity and reactivity of the respective layers within the stack. First complex multi-ceramic pieces has been printed becoming a breakthrough on the functional ceramic devices fabrication.