Two samples with diamond pores, and different dimensions were designed: (1) a sample with a length of 45 mm. 0.7 mm fiber spacing, and 26° angle distance between fibers (Figure and a heating temperature of 230°C, collector speed of 100 mm/min, and flow rate of 0.28 μL/min, result in nylon-12 fibers with a diameter of 60 μm (Table ). Based on this data, and once it was confirmed that nylon-12 was completely melted above 210°C (Figure ), it was predicted that the material remains melted in the hot zone for approximately 3 h until it is extruded.