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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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