A drive shaft for coupling with a drive gear having a gear shaft extending
outwardly therefrom. The gear shaft includes a twisted triangular
coupling hole having defined vertices. The drive shaft includes a
cylinder flange joined to one end of a drive shaft cylinder, the cylinder
flange having a concentric shaft extending outwardly therefrom and a
plurality of members extending longitudinally outwardly from the
concentric shaft, wherein the members are adapted to fit within the
twisted triangular coupling hole. The plurality of members may include
parallelogram-shaped prongs. Alternatively, a rod extends outwardly from
the concentric shaft. The rod has three skewed blades that extend
radially outwardly therefrom. Another aspect is a material supply module
including a drive shaft.