Pulsar™ has no mixing section, but experiments have shown that there's a good shear in the screw, mostly in the later section of the extruder. This section which is very close to the nozzle adds some mixing path and fixed separation of the melt before it exits, which greatly improves the mixing.

3D printer heaters have evolved over the years, from the NiChrome wire in putty to the heater cartridge. Today, a new generation of heaters has emerged: Spiral heaters, which offers better control and better uniformity.