Gerrit Coetzee had a problem 3D printing smaller parts, and so he decided to experiment with temperature and speed resulting in his "overkill method" that uses fans to cool a small print, while plastic is heated by a very hot nozzle. The result is a high-quality small 3D printed part that is not "bendy" or "gloppy." The combination of an extra hot nozzle for melting plastic using cooling fans to bond layers before they hit the glass is the key in this case to better 3D printing. Read more at ‎