Most of the latter designs rely either in rotors with holes or in auger mechanisms . After trying both kinds of designs, the one based on rotors proved a better fit for our case and less prone to obstructions. Nevertheless, it required a substantial prototyping and testing effort to adopt the design to work with hard polymer pellets of various shapes and sizes. The dispensomixer is complemented with the pellet distributor, which to the best of our knowledge does not have a predecessor in our field but obviously devices with the same functionality are widely used in the packaging industry.