Transcript The Automatic Keg Tap

The Automatic Keg Tap
Not Good
Our Design
The Pump: Reciprocating Arm Motor
The difficulties of recreating a
hand
1st Hand Prototype
Serious Issues
2nd Hand Prototype
3rd Hand Prototype
Adding Circuitry
1: Driving the Motor
Max Output Voltage: 5V
Desired Input Voltage: 12V
Solution:
Transistor Switch
5V
12V
Adding Circuitry
2: Turning Pump on and Off
Pressure Sensor
(14.5 psi)
Problem 1:
Sensor decided to stop working
Problem 2:
Found new one, but…
Solution (Unfortunately):
Timer and Flip Switch
Circuitry
The Bad
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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