An important yet often omitted aspect of 3DP is internal integrity originating from the mechanical strength of the manufactured components, particularly multi-material joints. Carbon fillers change the strength parameters of prints, most notably increasing the hardness and improving the wear resistance of printed components. Many studies focused on optimising the printing parameters, i.e. deposition speed, nozzle temperature, bed temperature, layer thickness, infill density, infill pattern, etc. . Finally, the electric properties depend, to a large extent, on the 3DP operating temperature or mechanical deformation , which may effectively translate to issues with sensor stability or reproducibility. The reports showcasing joint mechano-electric characteristics of conductive and nonconductive complex structures fabricated in a single 3D printing process are missing. This work proposes a 3DPEC for electroanalytical studies in stationary or flow-through conditions.