Finally, a 10-layer sample with 'dog-bone' shaped pores and auxetic properties was printed, demonstrating no defects and smooth fibers (Figure ). This was accomplished by setting the printhead temperature to 250°C, and increasing the collector temperature to 130°C. To avoid the layer shifting observed in the sinusoidal sample, the print speed was decreased by 5 mm . min -1 for each layer. The final construct showed well-defined pores and consistent layer stacking (Figure ), and only minor defects were observed (Figure ).