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This article outlines the journey of designing an automatic keg tap system, detailing the challenges encountered with each prototype. Initial attempts faced serious issues, including difficulties with motor voltage requirements and sensor malfunctions. Despite these setbacks, solutions such as transistor switches and timer circuits were implemented. While the final design offers automation, ease of use, and compatibility with various keg taps, it also presents issues with portability, stability, and noise. This exploration highlights the balance between function and design in engineering projects.
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Adding Circuitry 1: Driving the Motor Max Output Voltage: 5V Desired Input Voltage: 12V
12V Solution:Transistor Switch 5V
Adding Circuitry 2: Turning Pump on and Off Pressure Sensor (14.5 psi)
Problem 1: Sensor decided to stop working
The Bad • Does not sense pressure • Not very portable • Difficult to attach • A bit shaky • Some noise • Loose nuts and bolts
The Good: • Automatic • Minimal Effort (flip a switch) • Can attach to any keg tap • No cutting or invasive maneuvers required • Way quieter • Cheaper • Good flow