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Novel 3D printing solutions, which can deposit conductive inks at high resolution directly onto flat and freefrom surfaces, have recently become available .This allows more freedom of electronics design for a broad range of applications, e.g.: interconnections, passive components, sensors and antennas. This also allows to reply the growing demand for more dedicated SMART products with complex freeform shapes and electronic/electric properties. Specifically, so-called jet (ink jet and aerosol jet) and dispensing (extrusion) printing processes show much potential for becoming the standard for freeform fabrication of electronics. Depending on the application one or the other technology can be applied. Ink jet (known to the general public for its use in at home 2D desktop printers) is very robust, has good resolution but it can print on flat subtrates only. Aerosol jet on the other hand allows freeform (3D) printing at small resolution (down to 0,01 mm). Finally dispensing is appropriate for large resolution printing and is cheap. Other aspect that need to be considered for having a functional device include: ink selection, possible pre-treatment of the substrate, and post-processing (sintering) of the deposited inks.