The printing parameters and material properties have a notable influence on the physical and geometrical characteristics of the printed samples, such as extrusion stability, layer periodicity, and the uniformity of printed cylindrical specimens. Extrusion stability, in other terms, over-or under-extrusion (∆W ) was assessed by measuring the weights of the three samples after each printing, which was averaged and reported as the printed weight (W printed ). Knowing the theoretical density of the nanocomposite contents and volume of the cylinders, the theoretical weight (W theoretical ) of the samples was calculated for each composition at 100% infill rate. Finally, ∆W was calculated using the following formula: