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Accurate Dispenser

This device was built to test a sensor which measures very small amounts of flow. It was constructed from the linear actuator and circuit board I used in my rice carrying robot. The processor simply steps the motor once every 3 seconds, moving the plunger 1/1600th of an inch, and dispensing about 5 ml per hour. The plunger can also move much faster to set/reset the device, as shown in the video below.

Dispense Video

Accurate dispensing device:

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