the automatic keg tap. not good our design
TRANSCRIPT
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The Automatic Keg Tap
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Not Good
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Our Design
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The Pump: Reciprocating Arm Motor
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The difficulties of recreating a hand
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1st Hand Prototype
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Serious Issues
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2nd Hand Prototype
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3rd Hand Prototype
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Adding Circuitry 1: Driving the Motor
Max Output Voltage: 5V Desired Input Voltage: 12V
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Solution:Transistor Switch
5V
12V
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Pressure Sensor (14.5 psi)
Adding Circuitry 2: Turning Pump on and Off
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Problem 1:Sensor decided to stop working
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Problem 2:Found new one, but…
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Solution (Unfortunately):Timer and Flip Switch
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Circuitry
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The Bad
• Does not sense pressure• Not very portable• Difficult to attach• A bit shaky• Some noise• Loose nuts and bolts
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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
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