And this is the result of our experiment. values that give the highest hardness are layer height at 0.3 mm and speed at 70 mm/s and in terms of temperature, at temperatures 200 and 210 Degrees Celsius will not provide as much tensile strength as a temperature of 220 degrees Celsius. This is because when printing, if the temperature is too low, it may cause the plastic filaments to break or become small.