A direct inspiration for our dispenser was the Open Source Food Pellet Dispenser, which was adapted to the specific needs of our application as follows. The most relevant design decision was to omit the infrared sensors for detecting and counting the pellets that are dispensed. Our initial investigation has shown that for the amount of pellets that are needed in each dispensing process, counting pellets using the infrared sensors added an important uncertainty. Instead, we have chosen use an external balance together with the dispenser to more accurately determine the material amounts and regulate the dispensers accordingly. Other modifications were introduced to facilitate the scaling to parallel eight dispenser setup forming the dispensomixer, i.e. changing the Nema17 stepper motors for lighter and more affordable 5V stepper motors, a redesign of the rotors to adapt them to our pellet sizes and rigidity, or adding ball bearings to the base of the rotors to ensure a smoother rotation under load.